Daniel:
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> Hi again.
>
> On 06/06/17 12:11, Daniel Bareiro wrote:
>
> > I am gradually migrating the accounts of a server (let's say
> > mail1.domain.com) to another server (let's say mail2.domain.com).
> >
> > In mail2.domain.com I'm using something like this:
> >
> > ----------------------------------------------------------------
> > virtual_alias_domains = domain.com
> > virtual_alias_maps = hash:/etc/postfix/virtual
> > ----------------------------------------------------------------
> >
> > Where /etc/postfix/virtual has something like this:
> >
> > ----------------------------------------------------------------
> > j...@domain.com john
> > ----------------------------------------------------------------
> >
> > John is a SASL user (fortunately I was able to get this to work. I will
> > soon respond to my other thread indicating what the problem was).
> > Delivery on this way is working. The current MX is mail1.domain.com and
> > mail2.domain.com is receiving emails via fetchmail.
> >
> > The issue arises when a mailbox migrated to be used from
> > mail2.domain.com wants to send an email to a non-migrated mailbox. I get
> > something like this:
> >
> > ----------------------------------------------------------------
> > An error occurred while sending mail. The mail server responded:
> > 5.1.1 <nat...@domain.com>: Recipient address rejected: User unknown in
> > virtual alias table.
> > Please check the message recipient "nat...@domain.com" and try again.
> > ----------------------------------------------------------------
> >
> > Is there a way to get Postfix at mail2.domain.com knows that the
> > mailboxes of domain.com for non-migrated accounts are at
> > mail1.domain.com? Maybe using a transport table?
> >
> >
> > Thanks in advance for your time.
>
> I've tried something like this:
>
> ----------------------------------------------------------------
> nat...@domain.com smtp:mail1.domain.com:25
> ----------------------------------------------------------------
>
> and adding:
>
> ----------------------------------------------------------------
> transport_maps = hash:/etc/postfix/transport
> ----------------------------------------------------------------
>
> But I'm still getting the "Recipient address rejected: User unknown in
> virtual alias table" message.
Instead of removing the user from virtual_alias_maps, replace it with
a 1:1 mapping:
nat...@domain.com nat...@domain.com
Wietse
