During the last month (December 2018) there have been 57 reports from one or several users of e-mail account(s) that the site <Groupname>@ is a SPAM one ! The e-mail server automated SPAM list triggers on, past a certain level (I guess that is 50 rports or more) and a new ¡°filter¡± is applied on the 1st day of the next month.
The automated action of the Videotron delivery system is then to simply DISCARD all the e-mails coming from the site, whoever the e-mail recipient !!! INCREDIBLE¡ but that explains why I stopped to receive messages from the site at noon, local time, on Jan 1!
Please
send a copy of your member's report to
[email protected] - clearly Mark
should be subscribed to Videotron's FBL list, if they operate one. But
in either case I'm sure he would appreciate knowing about this behavior.
Our member added The videotron engineer who talked to me is sure that the automated reaction was triggered by one or many users trying to unsubscribe by just using the SPAM button on their Videotron web-based e-mail interface!
Unfortunately, some users have been "trained" to handle unsubscription that way, confusing their legit email list subscriptions with unsolicited emails ("spam").
... if the reported explanation is correct it would suggest that this blockage was caused by a single member persistently reporting Groups.io messages from our group as spam.
A behavior that has been reported with some email services is that messages automatically diverted to the Spam folder, and then allowed to remain there until some auto-delete interval, will also trigger this behavior - without any explicit action by the user. That could artificially produce a large number of "reports".
What is a bit worrying is that an ISP would accept these "reports" as correct and simply stop passing the traffic to recipients while at the same time accepting them from their originator without comment, as evidenced by the 2.0.0. delivery reports.
Discarding an accepted message is very bad practice, unless the source of the message is solidly known to be invalid. Reports from a user would not qualify as such.
Shal
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Shal Farley