[email protected]:
Content-Description: Plaintext Message
> ----- Message from Wietse Venema <[email protected]> ---------
> ? ? Date: Thu, 31 Oct 2019 08:20:44 -0400 (EDT)
> ? ? From: Wietse Venema <[email protected]>
> Reply-To: Postfix users <[email protected]>
> Subject: Re: Avoidance of duplicate mails reg
> ? ? ? To: Postfix users <[email protected]>
>
> > [email protected]:
> >> Hi,
> >>
> >> We have migrated to a new domain yyy.com.? We also continue to receive
> >> mails on old domain xxx.com.
> >>
> >> When a sender sends a mail to [email protected] (old domain), mail is
> >> received and delivered to user abcd.? Abcd when he replies to all (his
> >> from email address will be [email protected] [new domain], and hence, mail
> >> is also sent to [email protected] [old domain].? So, the sent mail is also
> >> received back to the same sender.
> >>
> >> When the actual recipient receives the mail, he will have [email protected]
> >> and [email protected] in the address list. So, when he replies to that
> >> mail, 2 mails will be sent to the same user.
> >>
> >> What's the best way that, the user receives only one mail, when both
> >> domains are in To addresses?
> >
> > /etc/postfix/main.cf:
> > ? ?virtual_alias_maps =
> > ? ? ? ? hash:/etc/postfix/old-to-new ...other existing maps...
> >
> > /etc/postfix/old-to-new:
> > ? [email protected]? ? ? ? [email protected]
> >
> > # postmap /etc/postfix/old-to-new
> > # postfix reload
> >
> > Instead of hash, you can use any supported type.
> > ? ? ? ? Wietse
>
> ----- End message from Wietse Venema <[email protected]> -----
>
> Sorry for the trouble.? But, after doing that, when I sent a mail from
> outside to both these email addresses [email protected] and
> [email protected] (in a single mail) , 2 emails came instead of one.? I
> want that, if both these domains are listed in the same mail, only one
> mail should be received.
You need to prove (logs!) that Postfix received ONE message with
multiple recipients.
If Postfix receives multiple messages, then Postfix will not combine
them into one.
Wietse
