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Received from dgrass1@... at 11/13/2018 12:30 AM UTC:

The problem according to a level 2 tech at cox.net is I am black listed by Spamhaus.east.cox.net, and they are going to hand this problem over to their engineers, and thought they might be able to solve this…It has to do with reputation. I contacted Mark at support about this also, to see if he might be able to solve this on his end. I'll know how this works out on the 15th, when I have an appointment to talk to that tech again.

The Groups.io mail server is NOT listed by Spamhaus, so the above error message is "interesting" to say the least. Perhaps Cox downloaded a copy of the Spamhaus RBL at some time in the past when Groups.io was listed and hasn't updated that list since. Large ISPs pay for Spamhaus' services and using a local copy of an old list is one way (against terms of service) to avoid ongoing payments... and also a sure way to get false positive spam reports (and false negatives).

You might want to ask Cox what Spamhaus.east.cox.net is. I bet it's an internal Cox RBL based on the Spamhaus RBLs and is out of date.

Jim H

Jim,

This will be a simplistic explanation of what Spamhaus is, but I was told it's a bot type program designed to look for Spammers. It looks for large amounts of emails sent by an entity, and some how makes a determination the entity is a Spammer, then black lists that entity. At least, that's how I understand it.

Thinking back on things that I have done on my group, I have one idea of what may have caused this problem. I built up a list of people that I have invited over a period of time (All past members of the group at one time), and it had maybe 40 to 50 people on it. About one a month I would use that list of saved invites, and re-invite them again in mass. This may have made me look like a Spammer.

Don

Received from dgrass1@... at 11/13/2018 07:50 AM UTC:

This will be a simplistic explanation of what Spamhaus is, but I was told it's a bot type program designed to look for Spammers. It looks for large amounts of emails sent by an entity, and some how makes a determination the entity is a Spammer, then black lists that entity. At least, that's how I understand it.

Don,

That's basically it, but Spamhaus isn't triggered by a "large amount of email." They maintain many spam trap addresses located on servers all over the world. Since those addresses are unpublished and have never been used or divulged to anyone, no one has any reason to be sending mail to them. So when they do receive mail it tends to be spam. Enough mail from a single IP and that mail gets a manual review and if found to be spam (almost always) the responsible IP gets listed. Along with that listing is a description of the spammer involved (and other info), if it can be determined.

Thinking back on things that I have done on my group, I have one idea of what may have caused this problem. I built up a list of people that I have invited over a period of time (All past members of the group at one time), and it had maybe 40 to 50 people on it. About one a month I would use that list of saved invites, and re-invite them again in mass. This may have made me look like a Spammer.

What you describe above - which I read as repeatedly reinviting the same past members who didn't accept your invitation to rejoin previously - is definitely spam. I couldn't guess how likely it is to have gotten you black listed... except to say that your IP (68.7.123.231) doesn't appear in any of the common and reputable black lists.

As for continuing that practice... by failing to respond those past members are telling you "no" and as in certain other aspects of our lives, "No means no!"

You need to contact Cox to try to resolve your problem. It's going to require contact with someone higher than the initial support level. You may find the following helpful.



One other thing you can try if you think your IP really is listed is to unplug your modem overnight. That should result in a new dynamic IP when you plug it up the next morning. Some unlucky soul will eventually get your old IP, so if this works you really ought to call Cox and report the problem you had with that IP so they can fix it.

Good luck.

Jim H

Jim,

As soon as I realized that my periodic re-inviting past members might be construed as Spam, I deleted that list of invited people so I couldn't do that again. I thought when an invite was sent, the person it was sent to could click on a link in the email invite that would tell me they did not want to join. I guess that was my mistake to think that.

I have been in communication with Cox about this, and tomorrow I have a scheduled phone call with a level 2 person to find out what they have been able to do...or not do.

I'll check out the link, and think about your last idea.

Thanks,
Don

Received from dgrass1@... at 11/15/2018 12:15 AM UTC:

I thought when an invite was sent, the person it was sent to could click on a link in the email invite that would tell me they did not want to join.

Invitees are told that to decline the invitation they should just ignore it.

Standard advice when receiving spam is to never click any links in the spam, not even an unsubscribe link. Responding, even if to tell them to drop dead, tells them that the address is deliverable.

I have been in communication with Cox about this, and tomorrow I have a scheduled phone call with a level 2 person to find out what they have been able to do...or not do.

Excellent. Perhaps they can explain exactly what the issue is. The error message (if I recall correctly) isn't very helpful. A better explanation may help Groups.io correct the problem for all Cox subscribers.

Good luck!

Jim H

The scheduled phone call from Cox never came, so I think I'll call Cox and get some more information from them about resetting my IP address...Maybe they might need to be involved in this.

I still keep getting delayed emails from my group and GMF (Sometimes only hours old instead of days), and this is making me wonder abut something. If I was blacklisted would I still get delayed emails (even my own) from my group and GMF?

Don

On Thu, Nov 15, 2018 at 10:57 PM, <dgrass1@...> wrote:

I still keep getting delayed emails from my group and GMF

That's probably due to the known problem with Cox,

Duane
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Tonight when I open my mail program there were over 90 emails downloaded, and 85 of them were from my group and GMF. All of them were delayed, until I got to the last one, and that was only seconds old. I sent an email to my group tonight, and I got a copy of it back almost instantly! That's the fastest I'm gotten email from Groups.io since this problem happened back around October 21st, and I'm crossing my finger Cox has fixed this issue.

Don

Whatever the reason for the delays, it finally has stopped! It's been two days now, and I'm glad to announce everything is working like normal again.

Don