* Edgar Fuß via Postfix-users <[email protected]>:
> Hello,
> 
> I'm looking for a method to (during a mailbox migration) temporarily reject 
> (not bounce) mails to a specific (or a set of specific) local user(s). I.e., 
> I want the SMTP daemon to reply something like
>       450 4.2.1 [email protected]: migration in progress
> at the RCPT TO (or DATA) command.
> Using an error: transport_maps entry will bounce, not reject.

use
  check_recipient_access hash:/etc/postfix/tempfail_rcpt
in your smtpd_recipient_restrictions.

with:
[email protected]   450 migration in progress
in "/etc/postfix/tempfail_rcpt", and don't forget postmaping the file :)

-- 
Ralf Hildebrandt
  Geschäftsbereich IT | Abteilung Netz | Netzwerk-Administration
  Invalidenstraße 120/121 | D-10115 Berlin
  Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
  [email protected] | https://www.charite.de
            
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