Monday, February 21, 2022, 10:59:10 PM, Jaroslaw Rafa  wrote:

> Dovecot comes into play only when user logs in to IMAP account. It keeps its
> own mapping between login names (which do not need to be email addresses,
> they can be just any names) and mailboxes corresponding to these users. 
> User logs in using some name and gets access to a particular mailbox. 
> That's all what Dovecot does.

This is the thing that I could not figure out from the Dovecot 
documentation - mapping between Dovecot login names and mailboxes.
That's why I went down the alias path in postfix.

It seemed to me that Dovecot login names and email addresses had to match.
That is, user logging in from an MUA as "[email protected]" (with POP3) could not 
retrieve email sent to [email protected] 

FWIW, no Dovecot user has a Unix account.


-- 
Cheers,
Phil

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