Re: [Dovecot] Duplicate suppression

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