1. TekScopes@groups.io
Topics

Email contact oddity - Spam Blacklisted?

Colin Herbert
 

I have belatedly thought of another route to examining this oddity. Apart
from Siggi and Carsten contacting me directly, maybe others might like to
give it a try? My email address can be extracted from that which appears on
Tekscopes, but it is:



Colingherbert(at)blueyonder(dot)co(dot) uk



I will reply directly to any messages that get through to me, so as not to
take bandwidth from Tekscopes.

TIA, Colin.
Jean-Paul
 

Colin I have struggled with similar email disconnects with others.

The only good solution is to have several email providers as alternatives.

I have 12 email addresses on various servers and manage with open source client Mozilla Thunderbird.

Jon
Chuck Harris
 

I think Dennis has it bass-ackwards. The problem is not the
receiver, but rather that the receiver's ISP subscribes to a
service that knows the sender, Dennis, to be a spam generator.

This same problem visited me, maybe a dozen years ago....

I got into an email argument with one of the members of this
group, who thought a just punishment for my disagreeing with
him would be to disrupt my life, by turning me in to Spamhaus
as a spammer.

It was a simple act on his part, he just clicked the REPORT SPAM
button on the anti-spam plugin he installed on his email program.

In a matter of days, emails from my main email address would
bounce when I sent them to members of my circle of family and
friends.

I tracked down my problem to a highly authoritarian European
company, Spamhaus, that maintains a list of entities adjudicated
by themselves to be serial spammers.

This Spamhaus list is the basis of dozens of subscription based
spam blocking services used by many ISP's worldwide.

All you need to get on Spamhaus's list is for ONE (1) person to
click a button on their email program, and report you as a
spammer.

To get off the list, you must contact Spamhaus and provide them
with a host of personal information, and to jump through a few
hoops, to prove that you are a real person... As if!

I got off the list by threatening my ISP, and a few of the ISP's
that subscribe to the offending spam blocking services, with
restraint of trade lawsuits.

Whether or not Dennis knows it, he is a lightning rod for a
group of highly technical miscreants that haunt, or have at one
time haunted this group... many of whom are very nasty,
vindictive people.

Groups.io's solution to the Spamhaus problem is to kick anyone
that bounces groups.io emails as spam, off of group.io.

-Chuck Harris

Colin Herbert via groups.io wrote:

I have belatedly thought of another route to examining this oddity. Apart
from Siggi and Carsten contacting me directly, maybe others might like to
give it a try? My email address can be extracted from that which appears on
Tekscopes, but it is:



Colingherbert(at)blueyonder(dot)co(dot) uk



I will reply directly to any messages that get through to me, so as not to
take bandwidth from Tekscopes.

TIA, Colin.
Dave Daniel
 

If that were the case, Dennis’ emails would bounce, which is not happening.

DaveD

On Nov 8, 2020, at 11:06, Chuck Harris <cfharris@erols.com> wrote:

I think Dennis has it bass-ackwards. The problem is not the
receiver, but rather that the receiver's ISP subscribes to a
service that knows the sender, Dennis, to be a spam generator.

This same problem visited me, maybe a dozen years ago....

I got into an email argument with one of the members of this
group, who thought a just punishment for my disagreeing with
him would be to disrupt my life, by turning me in to Spamhaus
as a spammer.

It was a simple act on his part, he just clicked the REPORT SPAM
button on the anti-spam plugin he installed on his email program.

In a matter of days, emails from my main email address would
bounce when I sent them to members of my circle of family and
friends.

I tracked down my problem to a highly authoritarian European
company, Spamhaus, that maintains a list of entities adjudicated
by themselves to be serial spammers.

This Spamhaus list is the basis of dozens of subscription based
spam blocking services used by many ISP's worldwide.

All you need to get on Spamhaus's list is for ONE (1) person to
click a button on their email program, and report you as a
spammer.

To get off the list, you must contact Spamhaus and provide them
with a host of personal information, and to jump through a few
hoops, to prove that you are a real person... As if!

I got off the list by threatening my ISP, and a few of the ISP's
that subscribe to the offending spam blocking services, with
restraint of trade lawsuits.

Whether or not Dennis knows it, he is a lightning rod for a
group of highly technical miscreants that haunt, or have at one
time haunted this group... many of whom are very nasty,
vindictive people.

Groups.io's solution to the Spamhaus problem is to kick anyone
that bounces groups.io emails as spam, off of group.io.

-Chuck Harris

Colin Herbert via groups.io wrote:
I have belatedly thought of another route to examining this oddity. Apart
from Siggi and Carsten contacting me directly, maybe others might like to
give it a try? My email address can be extracted from that which appears on
Tekscopes, but it is:



Colingherbert(at)blueyonder(dot)co(dot) uk



I will reply directly to any messages that get through to me, so as not to
take bandwidth from Tekscopes.

TIA, Colin.
Chuck Harris
 

I don't think so. Dennis's emails are stuck in the infinite
retry loop, which seems to mean that Colin's ISP is set to
drop on the floor all emails that it doesn't want to receive.

It considers them spam, and as such, unworthy of acknowledgement.

The sender's ISP retries... and retries... and retries....

This is a common technique, as it wastes the spam sender's
resources and time, and costs Colin's ISP little or nothing.

-Chuck Harris

Dave Daniel wrote:

If that were the case, Dennis’ emails would bounce, which is not happening.

DaveD

On Nov 8, 2020, at 11:06, Chuck Harris <cfharris@erols.com> wrote:

I think Dennis has it bass-ackwards. The problem is not the
receiver, but rather that the receiver's ISP subscribes to a
service that knows the sender, Dennis, to be a spam generator.

This same problem visited me, maybe a dozen years ago....

I got into an email argument with one of the members of this
group, who thought a just punishment for my disagreeing with
him would be to disrupt my life, by turning me in to Spamhaus
as a spammer.

It was a simple act on his part, he just clicked the REPORT SPAM
button on the anti-spam plugin he installed on his email program.

In a matter of days, emails from my main email address would
bounce when I sent them to members of my circle of family and
friends.

I tracked down my problem to a highly authoritarian European
company, Spamhaus, that maintains a list of entities adjudicated
by themselves to be serial spammers.

This Spamhaus list is the basis of dozens of subscription based
spam blocking services used by many ISP's worldwide.

All you need to get on Spamhaus's list is for ONE (1) person to
click a button on their email program, and report you as a
spammer.

To get off the list, you must contact Spamhaus and provide them
with a host of personal information, and to jump through a few
hoops, to prove that you are a real person... As if!

I got off the list by threatening my ISP, and a few of the ISP's
that subscribe to the offending spam blocking services, with
restraint of trade lawsuits.

Whether or not Dennis knows it, he is a lightning rod for a
group of highly technical miscreants that haunt, or have at one
time haunted this group... many of whom are very nasty,
vindictive people.

Groups.io's solution to the Spamhaus problem is to kick anyone
that bounces groups.io emails as spam, off of group.io.

-Chuck Harris

Colin Herbert via groups.io wrote:
I have belatedly thought of another route to examining this oddity. Apart
from Siggi and Carsten contacting me directly, maybe others might like to
give it a try? My email address can be extracted from that which appears on
Tekscopes, but it is:



Colingherbert(at)blueyonder(dot)co(dot) uk



I will reply directly to any messages that get through to me, so as not to
take bandwidth from Tekscopes.

TIA, Colin.
Dave Daniel
 

Ok. It’s fine that you don’t think so.

DavdD

On Nov 8, 2020, at 12:57, Chuck Harris <cfharris@erols.com> wrote:

I don't think so. Dennis's emails are stuck in the infinite
retry loop, which seems to mean that Colin's ISP is set to
drop on the floor all emails that it doesn't want to receive.

It considers them spam, and as such, unworthy of acknowledgement.

The sender's ISP retries... and retries... and retries....

This is a common technique, as it wastes the spam sender's
resources and time, and costs Colin's ISP little or nothing.

-Chuck Harris

Dave Daniel wrote:
If that were the case, Dennis’ emails would bounce, which is not happening.

DaveD

On Nov 8, 2020, at 11:06, Chuck Harris <cfharris@erols.com> wrote:

I think Dennis has it bass-ackwards. The problem is not the
receiver, but rather that the receiver's ISP subscribes to a
service that knows the sender, Dennis, to be a spam generator.

This same problem visited me, maybe a dozen years ago....

I got into an email argument with one of the members of this
group, who thought a just punishment for my disagreeing with
him would be to disrupt my life, by turning me in to Spamhaus
as a spammer.

It was a simple act on his part, he just clicked the REPORT SPAM
button on the anti-spam plugin he installed on his email program.

In a matter of days, emails from my main email address would
bounce when I sent them to members of my circle of family and
friends.

I tracked down my problem to a highly authoritarian European
company, Spamhaus, that maintains a list of entities adjudicated
by themselves to be serial spammers.

This Spamhaus list is the basis of dozens of subscription based
spam blocking services used by many ISP's worldwide.

All you need to get on Spamhaus's list is for ONE (1) person to
click a button on their email program, and report you as a
spammer.

To get off the list, you must contact Spamhaus and provide them
with a host of personal information, and to jump through a few
hoops, to prove that you are a real person... As if!

I got off the list by threatening my ISP, and a few of the ISP's
that subscribe to the offending spam blocking services, with
restraint of trade lawsuits.

Whether or not Dennis knows it, he is a lightning rod for a
group of highly technical miscreants that haunt, or have at one
time haunted this group... many of whom are very nasty,
vindictive people.

Groups.io's solution to the Spamhaus problem is to kick anyone
that bounces groups.io emails as spam, off of group.io.

-Chuck Harris

Colin Herbert via groups.io wrote:
I have belatedly thought of another route to examining this oddity. Apart
from Siggi and Carsten contacting me directly, maybe others might like to
give it a try? My email address can be extracted from that which appears on
Tekscopes, but it is:



Colingherbert(at)blueyonder(dot)co(dot) uk



I will reply directly to any messages that get through to me, so as not to
take bandwidth from Tekscopes.

TIA, Colin.
Dave Voorhis
 

On 8 Nov 2020, at 12:05, Colin Herbert via groups.io <colingherbert=blueyonder.co.uk@groups.io> wrote:

I have belatedly thought of another route to examining this oddity. Apart
from Siggi and Carsten contacting me directly, maybe others might like to
give it a try? My email address can be extracted from that which appears on
Tekscopes, but it is:

Colingherbert(at)blueyonder(dot)co(dot) uk
You can check domains at https://mxtoolbox.com/blacklists.aspx to see if they’re blacklisted by any of the various anti-spam services.

I note that blueyonder.co.uk <http://blueyonder.co.uk/>; is not listed on any blacklists.

However, ridesoft.com <http://ridesoft.com/>; is on no less than eight blacklists. That guarantees that some email sent to ridesoft.com <http://ridesoft.com/>; addresses won’t get through, because some will be blocked by the sender’s outbound mail service — usually their ISP — and some will probably be blocked as incoming email by blueyonder.co.uk <http://blueyonder.co.uk/>;, assuming ridesoft.com <http://ridesoft.com/>; email is redirected to one or more addresses at blueyonder.co.uk <http://blueyonder.co.uk/>;.

I’ve never seen a domain on eight blacklists. One or two isn’t unusual, particularly if a domain runs a variety of public email-based services like email-based forums or Web forums with email-based registration confirmations, but eight…?!

Either ridesoft.com <http://ridesoft.com/>; is being explicitly reported for sending spam (which doesn’t necessarily mean it is sending spam), or it is inadvertently sending spam due to running misconfigured or legacy services that can be exploited. For example, some old email mailing list software can be hijacked into sending spam, as can various “auto-responders” originally intended to send out automated announcements, as can misconfigured email servers.
Chuck Harris
 

And, there we have it.

Dennis owns Ridesoft.com

As I said in an earlier posting, he is a lightning rod
for any of a wide number of prickly members that disapprove
of his moderation rulings.

It was done to me, and it looks like it was done to Dennis.

All anyone has to do is send his email to spamhaus as being
associated with spamming, and he will be blacklisted by
any number of different ISP's... With no good methods of
recourse.

Sure, you can fill out their form with all manner of your
private and personal information, and if they so deem you
worthy, they will remove you from the list... But why would
you send private stuff like that to a group that behaves
the way that they do?

-Chuck Harris

Dave Voorhis wrote:

On 8 Nov 2020, at 12:05, Colin Herbert via groups.io <colingherbert=blueyonder.co.uk@groups.io> wrote:

I have belatedly thought of another route to examining this oddity. Apart
from Siggi and Carsten contacting me directly, maybe others might like to
give it a try? My email address can be extracted from that which appears on
Tekscopes, but it is:

Colingherbert(at)blueyonder(dot)co(dot) uk
You can check domains at https://mxtoolbox.com/blacklists.aspx to see if they’re blacklisted by any of the various anti-spam services.

I note that blueyonder.co.uk <http://blueyonder.co.uk/>; is not listed on any blacklists.

However, ridesoft.com <http://ridesoft.com/>; is on no less than eight blacklists. That guarantees that some email sent to ridesoft.com <http://ridesoft.com/>; addresses won’t get through, because some will be blocked by the sender’s outbound mail service — usually their ISP — and some will probably be blocked as incoming email by blueyonder.co.uk <http://blueyonder.co.uk/>;, assuming ridesoft.com <http://ridesoft.com/>; email is redirected to one or more addresses at blueyonder.co.uk <http://blueyonder.co.uk/>;.

I’ve never seen a domain on eight blacklists. One or two isn’t unusual, particularly if a domain runs a variety of public email-based services like email-based forums or Web forums with email-based registration confirmations, but eight…?!

Either ridesoft.com <http://ridesoft.com/>; is being explicitly reported for sending spam (which doesn’t necessarily mean it is sending spam), or it is inadvertently sending spam due to running misconfigured or legacy services that can be exploited. For example, some old email mailing list software can be hijacked into sending spam, as can various “auto-responders” originally intended to send out automated announcements, as can misconfigured email servers.
Dave Voorhis
 

On 8 Nov 2020, at 23:23, Chuck Harris <cfharris@erols.com> wrote:

And, there we have it.

Dennis owns Ridesoft.com

As I said in an earlier posting, he is a lightning rod
for any of a wide number of prickly members that disapprove
of his moderation rulings.

It was done to me, and it looks like it was done to Dennis.

All anyone has to do is send his email to spamhaus as being
associated with spamming, and he will be blacklisted by
any number of different ISP's... With no good methods of
recourse.

Sure, you can fill out their form with all manner of your
private and personal information, and if they so deem you
worthy, they will remove you from the list... But why would
you send private stuff like that to a group that behaves
the way that they do?

-Chuck Harris
To my knowledge, Spamhaus runs just two of the usual 94 blacklists, and indeed a sometimes controversial one. Being on one can be a bit annoying for a while, but usually doesn’t last or cause significant disruption. (Though I appreciate that the, say, one sender who can’t reach you might be _very_ important.)

But getting on eight blacklists — of which the Spamhaus DBL is just one — suggests broader malicious reporting than just Spamhaus, and perhaps more than just malicious reporting. Getting on a blacklist usually requires machine-verifiable evidence of “spamming” (I use the term loosely, because some blacklists employ a broad and perhaps controversial definition) because bogus reports are common.

Getting on a blacklist usually happens because you have an inadvertently open mail relay (rare, but happens) or a flawed email autoresponder (not uncommon) or running an email mailing list with a “help” responder (some are almost guaranteed to get you blacklisted now and then) or sending bulk emails that you don’t think are spam (and maybe aren’t) but the blacklist organisation does.
Chuck Harris
 

Hi Dave,

I understand that. I pick on Spamhaus, because I had to deal
with them when I was DOX'd by a member of this tekscopes.

My point is the various blacklists work with the philosophy
of shoot them all, and let god sort them out later.

There was a time when there were several popular plugin apps
along the lines of SpamAssasin, which would on the user's
press of a button, send a victim's email address and ISP
address to dozens of different blacklists as a spammer. And,
the blacklists would gleefully add that victim to their kill
list.

I know that I was blocked that way by a member of this group,
and it seems very likely to me that Dennis was as well.

A person would be wise not to use an important email address
on this group.

-Chuck Harris

Dave Voorhis wrote:

On 8 Nov 2020, at 23:23, Chuck Harris <cfharris@erols.com> wrote:

And, there we have it.

Dennis owns Ridesoft.com

As I said in an earlier posting, he is a lightning rod
for any of a wide number of prickly members that disapprove
of his moderation rulings.

It was done to me, and it looks like it was done to Dennis.

All anyone has to do is send his email to spamhaus as being
associated with spamming, and he will be blacklisted by
any number of different ISP's... With no good methods of
recourse.

Sure, you can fill out their form with all manner of your
private and personal information, and if they so deem you
worthy, they will remove you from the list... But why would
you send private stuff like that to a group that behaves
the way that they do?

-Chuck Harris
To my knowledge, Spamhaus runs just two of the usual 94 blacklists, and indeed a sometimes controversial one. Being on one can be a bit annoying for a while, but usually doesn’t last or cause significant disruption. (Though I appreciate that the, say, one sender who can’t reach you might be _very_ important.)

But getting on eight blacklists — of which the Spamhaus DBL is just one — suggests broader malicious reporting than just Spamhaus, and perhaps more than just malicious reporting. Getting on a blacklist usually requires machine-verifiable evidence of “spamming” (I use the term loosely, because some blacklists employ a broad and perhaps controversial definition) because bogus reports are common.

Getting on a blacklist usually happens because you have an inadvertently open mail relay (rare, but happens) or a flawed email autoresponder (not uncommon) or running an email mailing list with a “help” responder (some are almost guaranteed to get you blacklisted now and then) or sending bulk emails that you don’t think are spam (and maybe aren’t) but the blacklist organisation does.
Roy Thistle
 

On Sun, Nov 8, 2020 at 03:23 PM, Chuck Harris wrote:


All anyone has to do is send his email to spamhaus as being
associated with spamming, and he will be blacklisted
Spamhaus doesn't accept spam reports, from individuals.
Roy Thistle
 

On Sun, Nov 8, 2020 at 01:36 PM, Dave Voorhis wrote:


You can check domains at https://mxtoolbox.com/blacklists.aspx
However, ridesoft.com <http://ridesoft.com/>; is on no less than eight blacklists.
Yes I see that...however Spamhaus claims it's not on any of their lists... however, the mxtoolbox "blacklist tool" does list it as being on Spamhaus DBL
The same goes for "Spam Eating Monkey" and "Spam Open Relay Blocking System"... Ridesoft.com... they claim... is not on their lists.
From what I can tell, Ridesoft.com is not currently being blocked.
Stephen Hanselman
 

I would agree, Spamhaus is a bit of a pain BUT they were also very easy to work with. One of my systems was compromised, and had put over 200,000 emails in my outbound queue. It was very creative to fix. An email to Spamhaus with the explanation and after a week or so the system was removed from their list.

On the other hand folks like Baracuda and Trend Micro make decisions based on, amount other things, what your reverse dns looks like or if the e-mail came from a dynamic IP. In our case AT&T switched some dynamic addresses to static when they switched from ADSL to Fiber. No amount of trying has gotten even a sign of a response from either of them.

Regards,

Stephen Hanselman
Datagate Systems, LLC

On Nov 9, 2020, at 07:23, Roy Thistle <roy.thistle@mail.utoronto.ca> wrote:

On Sun, Nov 8, 2020 at 03:23 PM, Chuck Harris wrote:


All anyone has to do is send his email to spamhaus as being
associated with spamming, and he will be blacklisted
Spamhaus doesn't accept spam reports, from individuals.
Dave Voorhis
 

From the sounds of past problems, ridesoft.com _was_ blacklisted, but perhaps enough information appeared here for Dennis to progress getting ridesoft.com unblocked. There may be caching involved, such that 3rd party mxtoolbox.com still sees ridesoft.com as blacklisted whereas going directly to the blacklisters doesn't. That would make sense if ridesoft.com was quite recently unblocked (for an unspecified value of "quite recently," of course.)

-----Original Message-----
From: TekScopes@groups.io <TekScopes@groups.io> On Behalf Of Roy Thistle
Sent: 09 November 2020 15:46
To: TekScopes@groups.io
Subject: Re: [TekScopes] Email contact oddity - Spam Blacklisted?

On Sun, Nov 8, 2020 at 01:36 PM, Dave Voorhis wrote:


You can check domains at https://mxtoolbox.com/blacklists.aspx
However, ridesoft.com <http://ridesoft.com/>; is on no less than eight blacklists.
Yes I see that...however Spamhaus claims it's not on any of their lists... however, the mxtoolbox "blacklist tool" does list it as being on Spamhaus DBL The same goes for "Spam Eating Monkey" and "Spam Open Relay Blocking System"... Ridesoft.com... they claim... is not on their lists.
From what I can tell, Ridesoft.com is not currently being blocked.
Vince Vielhaber
 

They don't NOW. They used to and had multiple lawsuits filed against them.

Vince.

On 11/09/2020 10:23 AM, Roy Thistle wrote:
On Sun, Nov 8, 2020 at 03:23 PM, Chuck Harris wrote:


All anyone has to do is send his email to spamhaus as being
associated with spamming, and he will be blacklisted
Spamhaus doesn't accept spam reports, from individuals.



--
K8ZW http://www.metalworkingfun.com http://www.hamradio.fun
Chuck Harris
 

Good! They should have been sued out of existence for that behavior.

-Chuck Harris

Vince Vielhaber wrote:

They don't NOW.  They used to and had multiple lawsuits filed against them.

Vince.

On 11/09/2020 10:23 AM, Roy Thistle wrote:
On Sun, Nov  8, 2020 at 03:23 PM, Chuck Harris wrote:


All anyone has to do is send his email to spamhaus as being
associated with spamming, and he will be blacklisted
Spamhaus doesn't accept spam reports, from individuals.
n4buq
 

AFAIK, Craigslist used to (and, may still) do that sort of thing. If someone flagged your reply to an ad as spam, you could no longer get a reply through the system to anyone's posting email address and, to my knowledge, there was not recourse to undo that. I had to start using a different email address for C/L replies as no one was seeing my responses.

Thanks,
Barry - N4BUQ

----- Original Message -----
From: "Chuck Harris" <cfharris@erols.com>
To: TekScopes@groups.io
Sent: Monday, November 9, 2020 1:35:33 PM
Subject: Re: [TekScopes] Email contact oddity - Spam Blacklisted?

Good! They should have been sued out of existence for that behavior.

-Chuck Harris

Vince Vielhaber wrote:
They don't NOW.  They used to and had multiple lawsuits filed against them.

Vince.

On 11/09/2020 10:23 AM, Roy Thistle wrote:
On Sun, Nov  8, 2020 at 03:23 PM, Chuck Harris wrote:


All anyone has to do is send his email to spamhaus as being
associated with spamming, and he will be blacklisted
Spamhaus doesn't accept spam reports, from individuals.
Jim Strohm
 

Also, if your ISP has open relays or is itself a spamhaus, you're likely to
get caught up in a wide net.

My ISP the first time I ran for US Congress (2006) got flagged as a
spamhaus, and hence my primary email got blacklisted.

Because of the quaint storage systems on the internet, like the Internet
Wayback Machine and others, I kept getting various flags until I left
public politics in 2014, even after I took my campaign website down. I'll
be paying for those domains until the day I die. If I didn't, they'd be
snarfed up by porn sites and aliased. Yay for the internet.

Hey, go to the Internet Wayback Machine and try February 2000 "Bish the
Cat" "texas.net" and see what you find. I think it's cool that some of my
stuff is still around when it's old enough to buy booze.

Your stuff is still out there too.

73
Jim N6OTQ
Dave Voorhis
 

Being known to a anti-spam list is different from being blacklisted. Most healthy domains will be recognized by roughly 80 - 100 spamlists on mxtoolbox but won't be blacklisted by any of them. It's not clear whether that means the spamlist actually maintains a record of the domain or simply approves it vs ignoring it (perhaps for not being resolved by DNS within some timeout period.)

I just tested a spammer domain picked at random from my inbox and it was resolved/listed on only 8 spamlists but was clearly blacklisted by one of them.

I note that ridesoft.com also is resolved/listed on only 8 spamlists but now doesn't show as blacklisted by any of them. Why it only resolves on 8 whilst other domains are resolved by many is not clear, but I note that mxtoolbox tools show some other email/SMTP problems with ridesoft.com, including slow connections and lack of a reverse DNS record, which may cause email delivery issues apart from any past/current blacklisting.

-----Original Message-----
From: TekScopes@groups.io <TekScopes@groups.io> On Behalf Of Roy Thistle
Sent: 10 November 2020 03:45
To: TekScopes@groups.io
Subject: Re: [TekScopes] Email contact oddity - Spam Blacklisted?

On Mon, Nov 9, 2020 at 08:12 AM, Dave Voorhis wrote:


That would make sense if ridesoft.com was quite recently unblocked
I checked with mxtoolbox domains I know are not on Spamhaus, and never were... or haven't been for a very long time.
mxtoolbox reported some of them were on almost 100 blacklists... which is ridiculous.
Colin Herbert
 

I have been keeping quiet on this topic which I opened for fear of irritating more friends on here. I have contact with Dennis now on a different email address; it is my old employer's email server at Imperial College, London and is taking Dennis' emails with no problems.
I have had about 16 members who have contacted me directly at my personal email address and I have responded to those that I received. If anyone wants to contact me and is having problems like Dennis has described, I also now have a gmail address which is:
colin.g.herbert@gmail.com
Thanks to all for their patience and help, I hope this can all be settled soon.
Colin.

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Dave Voorhis
Sent: 10 November 2020 09:07
To: TekScopes@groups.io
Subject: Re: [TekScopes] Email contact oddity - Spam Blacklisted?

Being known to a anti-spam list is different from being blacklisted. Most healthy domains will be recognized by roughly 80 - 100 spamlists on mxtoolbox but won't be blacklisted by any of them. It's not clear whether that means the spamlist actually maintains a record of the domain or simply approves it vs ignoring it (perhaps for not being resolved by DNS within some timeout period.)

I just tested a spammer domain picked at random from my inbox and it was resolved/listed on only 8 spamlists but was clearly blacklisted by one of them.

I note that ridesoft.com also is resolved/listed on only 8 spamlists but now doesn't show as blacklisted by any of them. Why it only resolves on 8 whilst other domains are resolved by many is not clear, but I note that mxtoolbox tools show some other email/SMTP problems with ridesoft.com, including slow connections and lack of a reverse DNS record, which may cause email delivery issues apart from any past/current blacklisting.

-----Original Message-----
From: TekScopes@groups.io <TekScopes@groups.io> On Behalf Of Roy Thistle
Sent: 10 November 2020 03:45
To: TekScopes@groups.io
Subject: Re: [TekScopes] Email contact oddity - Spam Blacklisted?

On Mon, Nov 9, 2020 at 08:12 AM, Dave Voorhis wrote:


That would make sense if ridesoft.com was quite recently unblocked
I checked with mxtoolbox domains I know are not on Spamhaus, and never were... or haven't been for a very long time.
mxtoolbox reported some of them were on almost 100 blacklists... which is ridiculous.
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