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I am using the iredmail mail system. When I create a maillists and add a user, when I send an email to that maillist and add the user in that maillist, that user gets two identical emails. Is there a way to delete an email?

NgHiep
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  • Maybe with the sieve duplicate extension from [RFC 7352](https://datatracker.ietf.org/doc/html/rfc7352) - https://doc.dovecot.org/configuration_manual/sieve/extensions/duplicate/ - – Rob May 05 '22 at 09:45

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