Repeated headers in mails using postfix

[Bevan]

Hi!

This problem was already reported some time ago in the Plesk 10 forum. Unfortunately there was no answer and this bug is still present in Plesk 11 so I report it here:

When postfix receives a mail with multiple recipients it writes some header lines multiple times into that mail.

Detailed bug report:

---------------------------------------------------------------
PRODUCT, VERSION, MICROUPDATE, OPERATING SYSTEM, ARCHITECTURE
Plesk Panel, 11.0.9, Update #7, Debian 6 (Squeeze), amd64

PROBLEM DESCRIPTION
When using postfix as MTA some header lines will be written repeatedly
into a received mail if it contains multiple recipients.
To be precise: They are written once per recipient.
As far as I can see it affects the following headers:
- Received-SPF
- X-No-Relay
- X-No-Auth

STEPS TO REPRODUCE
Send a mail with multiple recipients to a server using Plesk and Postfix.

ACTUAL RESULT
Multiple lines of the following headers are included in the mail:
- Received-SPF
- X-No-Relay
- X-No-Auth

EXPECTED RESULT
Each header line should exist only once.

ANY ADDITIONAL INFORMATION
--------------------------------------------------------------

Could you please forward it to the developers? It may not be a problem with 2 or 3 recipients, but with a lot more you run into problems...

 

[IgorG]

I have forwarded your report to developers. I will update thread with results when I receive them.

 

[IgorG]

As workaround just remove non_auth.re and no_rely.re records in main.cf for Plesk >=10.4
or clean:
/var/spool/postfix/plesk/non_auth.re
/var/spool/postfix/plesk/no_relay.re

 

[Bevan]

Hi IgorG,

thanks for your answer. Because of the names of the files I think this removes the X-No-Auth and X-No-Relay headers. Please note that also the Received-SPF header is affected by this problem when SPF is enabled.