Deliver same E-Mail in same Mailbox only once ?

Christoph Adomeit Christoph.Adomeit at
Wed Apr 20 08:29:37 UTC 2016

Hi there,

I have a customer with domain a at tld and domain b at tld.

b.tld is an alias for a.tld

The Server is using virtual users based on mysql, dovecot for delivery and Maildir for Mail-Storage.

If someone writes an e-mail to a.tld with a cc: to b.tld the customer receives the E-Mail twice.

Is there a way to deliver  the same Mail in the same Mailbox only once ?

Christoph Adomeit
Reststrauch 191
41199 Moenchengladbach
Sitz: Moenchengladbach
Amtsgericht Moenchengladbach, HRB 6303
Christoph Adomeit, Hans Wilhelm Terstappen

Christoph.Adomeit at     Internetloesungen vom Feinsten
Fon. +49 2166 9149-32                      Fax. +49 2166 9149-10

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