We use Squirrelmail version 1.2.11 on an ensim server I've looked all
OMG. Please upgrade ASAP. You are very vulnerable to several critical security flaws.
Anyway, here's the problem. TONS of spam messages are routed to our "catch-all" email account for (1) people who either used to have an email at our domain and have since left and had their email accounts deleted or (2) addresses on our domain which do not (and never have) existed. This email account gets hundreds of messages a day, which I then have to review and clear out.
So then don't use catchall addresses. Create aliases when needed. Or implement stronger spam filtering. That's OT here, but you can look around in SpamAssassin and/or amavisd-new lists and so on.
(1) When someone accidentally sends a message to an incorrect account - say because of a typ-o - that person has no way of knowing that the intended recipient did not get the message because there is no delivery failure.
Yup, another HUGE argument against using catchalls. Without them, a simple "no such user" bounce is generated by your MTA without any action or special configuration on your part.
We are a school, so parents get kind of irate when they think a teacher is ignoring their emails.
Seems like it's a very clear-cut case then. Don't use catchalls.
(2) This causes an unnecessary maintenance burden, as someone has to go into that "catch-all" account and clear it out many times a week because of all the spam that ends up in there. In a week it accumulates THOUSANDS of messages. Is there not some way to "return as undeliverable" messages sent to accounts that don't exist on our domain? Thanks for any guidance! Aletha Evert
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