Proxmox Mail gateway - Carbonio General

RE: Proxmox Mail gateway

antonio — Sat, 30 Sep 2023 06:21:32 +0000

@algorges Glad you managed. Nice work.

Have a nice day

RE: Proxmox Mail gateway

algorges — Fri, 29 Sep 2023 18:34:03 +0000

It worked.
I configured PMG to add the X-PMG-Flag header: YES

I created a file /opt/zextras/data/spamassassin/localrules/zzsauser.cf

header PMG_SPAM X-PMG-Flag =~ /YES/
describe PMG_SPAM PMG SPAM
score PMG_SPAM 5.0

bayes_ignore_header X-PMG-Flag

zmamavisdctl restart

Now messages marked as spam by PMG go directly to the user's spam folder.

RE: Proxmox Mail gateway

algorges — Thu, 28 Sep 2023 10:36:26 +0000

I will configure PMG to send a custom header to carbonio and test.
Thanks.

RE: Proxmox Mail gateway

antonio — Thu, 28 Sep 2023 09:18:16 +0000

Hi, I think SpamAssassin should always check all messages as a normal behavior but you can always add a SpamAssassin configuration rule (using header or header_eval rule types) to control it and not making more tests.

header X-Spam-Flag X-Custom-Header =~ /YES/
describe X-Spam-Flag Marked as spam at PMG level
score X-Spam-Flag 0.0

With this rule, SpamAssassin will check the specified header field for the specified value. If the condition is met, no spam score will be added to the message bypassing further spam checks for that message.

hope this gives you a clue

let us know if you make it work

Have a nice day

Proxmox Mail gateway

algorges — Wed, 27 Sep 2023 13:27:25 +0000

I have a PMG server as an antispam/antivirus gateway.
Messages classified by PMG, when forwarded to Carbonio, are analyzed again by amavis/spamassassin, resulting in spam classification errors.

How can Carbonio consider the header X-Spam-Flag: YES coming from PMG and not passing spamassassin again?