[Dovecot] Duplicate suppression

Thiago Henrique

14 Mar 2011 14 Mar '11

8:06 p.m.

Hello,

In a Dovecot 2.0.6 server I have an account x@domain and an alias y@domain -> x@domain.

When I send an email to x@domain with carbon copy to y@domain, X receives two messages on mailbox. Dovecot2 has any feature of duplicate suppression ?

Thanks, Thiago Henrique

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Robert Schetterer

14 Mar 14 Mar

9:58 p.m.

Am 14.03.2011 19:06, schrieb Thiago Henrique:

...

Hello,

In a Dovecot 2.0.6 server I have an account x@domain and an alias y@domain -> x@domain.

When I send an email to x@domain with carbon copy to y@domain, X receives two messages on mailbox. Dovecot2 has any feature of duplicate suppression ?

Thanks, Thiago Henrique

doubles are mostly based by misconfig of the smtp server, dovecot is no smtp server for i.e its a wided spreaded setup failure within a amavis/postfix setup etc

-- Best Regards

MfG Robert Schetterer

Germany/Munich/Bavaria

Andreas Ntaflos

15 Mar 15 Mar

3:03 a.m.

On Monday 14 March 2011 19:06:57 Thiago Henrique wrote:

...

Hello,

In a Dovecot 2.0.6 server I have an account x@domain and an alias y@domain -> x@domain.

When I send an email to x@domain with carbon copy to y@domain, X receives two messages on mailbox. Dovecot2 has any feature of duplicate suppression ?

Thanks, Thiago Henrique

Robert is very probably right. Misconfiguring Postfix's content filter capabilities can lead to message duplication when expanding aliases. This is also Postfix problem and unrelated to Dovecot. Have a look at this thread:

http://archives.neohapsis.com/archives/postfix/2004-11/0842.html

Also study the Postfix filter readme at

http://www.postfix.org/FILTER_README.html

to understand why it works they way it does.

Andreas

Nikolaos Milas

8:57 a.m.

If you use: enable_original_recipient = no ...then Postfix will suppress duplicates (but, unfortunately, it will no more log all original recipients).

See this thread: http://tech.groups.yahoo.com/group/postfix-users/message/275275

Nick

On 15/3/2011 3:03 πμ, Andreas Ntaflos wrote:

...

Robert is very probably right. Misconfiguring Postfix's content filter capabilities can lead to message duplication when expanding aliases.

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3 comments

4 participants

participants (4)

Andreas Ntaflos
Nikolaos Milas
Robert Schetterer
Thiago Henrique