Il 19/11/21 14:00, Amir Sarabadani ha scritto:
Lots of spammers send spam or virus or phishing emails to *-owner@ which mailman happily forwards to listadmins. But your server (e.g. Gmail), actually rejects those emails
For those users, who were presumably happy about receiving less spam, the probe messages themselves might look like an increase in spam.
Maybe the probe message could be turned into something that actually contains useful information, for instance: "If you see messages come through the mailing list as expected, this may mean that your email provider blocked some unwanted messages from delivery, for instance spam: in that case, no action is required". Alternatively, that call to action "Please examine this message" etc. may be made less imperative.
However it may not be worth optimising these messages if only few people are receiving them in spurious cases.
Federico