problem receiving incoming email with attachements

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Aidajafer
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Joined: Mon Jan 14, 2019 5:03 pm

problem receiving incoming email with attachements

Postby Aidajafer » Mon Jan 14, 2019 5:36 pm

Hi all,
I am new to this forum, but I have been managing zimbra mail server for some time now.
I have this problem that i need help. The mail server i am managing (production server) was doing fine, of recently, attachements within
incoming emails, from external domains are no longer seen in those emails. It is as if they have been removed somehow.
so whenever someone sends email with attachements are delivered successfully, but without attachements.
Please help me to understand and solve this issue. I am using zimbra collaboration network edition 8.8.10


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DualBoot
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ZCS/ZD Version: ZCS FLOSS - 8.7.11 Mutli servers

Re: problem receiving incoming email with attachements

Postby DualBoot » Wed Jan 16, 2019 9:21 am

Hello,

maybe a mail system filtering is dropping attachment silently ?

Regards,
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msquadrat
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Re: problem receiving incoming email with attachements

Postby msquadrat » Wed Jan 16, 2019 9:23 am

This sounds like Bug 109103
Aidajafer
Posts: 5
Joined: Mon Jan 14, 2019 5:03 pm

Re: problem receiving incoming email with attachements

Postby Aidajafer » Wed Jan 16, 2019 12:11 pm

after i inspected headers carefully, i came to realise that amavis was throwing " BAD HEADER SECTION, Improper use of control character (char 0Dhex)".
Zimbra support helped us to workaround the issue
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DualBoot
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Re: problem receiving incoming email with attachements

Postby DualBoot » Thu Jan 17, 2019 8:28 am

How the Zimbra Support help ?
Aidajafer
Posts: 5
Joined: Mon Jan 14, 2019 5:03 pm

Re: problem receiving incoming email with attachements

Postby Aidajafer » Thu Jan 17, 2019 8:34 pm

zimbra support edited configuration to pass bad headers
Aidajafer
Posts: 5
Joined: Mon Jan 14, 2019 5:03 pm

Re: problem receiving incoming email with attachements

Postby Aidajafer » Sat Jan 19, 2019 10:08 am

open /opt/zimbra/conf/amavisd.conf.in file, added the following line

$allowed_header_tests{‘control’} = 0;

restart the amavis service zmamavisdctl restart
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DualBoot
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ZCS/ZD Version: ZCS FLOSS - 8.7.11 Mutli servers

Re: problem receiving incoming email with attachements

Postby DualBoot » Mon Jan 21, 2019 8:36 am

Thank you for the tip.

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