Double extensions - Still blocked after disabling

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AITCS
Posts: 16
Joined: 13 Mar 2017 11:12

Double extensions - Still blocked after disabling

Post by AITCS » 06 Dec 2017 21:53

Hi all,

I've followed the instructions on this forum to allow double extension file names, but I'm still seeing 5.7.1 message content rejected coming up in our logs.
What would be the best procedure to test why this still might be occurring?

We have a client who needs to drop this rule due to them receiving lots of emails with domain names in the attachment file name, so it needs to be disabled.
eg. blah.com.pdf

Cheers.

AITCS
Posts: 16
Joined: 13 Mar 2017 11:12

Re: Double extensions - Still blocked after disabling

Post by AITCS » 06 Dec 2017 22:40

Figured out what it was... one of the extensions was being picked up in mime_header_checks so Postfix was binning the file before MailScanner even got to see it.

I'll leave this here as a reminder.

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