Domain Content Filter Block Scenario
Question asked by Ron Raley - 6/22/2023 at 6:16 PM
From a customer reference a harassing ex-member.  Your help is appreciated.



I need some assistance. We have an Alias email, board@ourdomain.com, that goes to a number of internal and external email addresses.

I also have a domain level content filter rule to block inbound email from a specific email address.

The block is working for the internal addresses, @ourdomain.com, but not working for the external addresses. It looks like the email is still being delivered to external users e.g. @gmail.com.

I would like the email that I am blocking to just die and not be routed to anyone on the dist list of the alias whether internal or external.

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Sébastien Riccio Replied
Hello Ron,

Not 100% sure but, I don't think aliases are processing content filters. They are only pointers for deliveries to either:
- local mailboxes, which will then process content filters when the mail is delivered to it
- external mailboxes, and then it's up to the external recipient server to do any kind of content filtering.

I guess what you could do is remove the alias and create it again as a real mailbox.
Then, use the this mailbox forwarding options to forward the mail to the final recipients (internal or internal).

Kind regards
Sébastien Riccio
System & Network Admin

Ron Raley Replied
Sébastien, thank you for the clarification.  This makes better sense now.

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