bharathan kailath:
> we've got a gateway postfix server with which we provide mails to hosted
> domains; postfix is configured with Separate Domains with System Accounts
> (virtual alias domains and virtual alias maps); clients mail server pop up
> and collect all the their mails; it works great; but one of the client using
> ETRN and their domain is specified in transport and fast flush domain
> parameter in main.cf; that also work;
>
> but i want to know for this particular client (who send ETRN) can have a
> mailbox like other clients?
>
> now for this particular client our postfix server defer the mail till it get
> the ETRN from client;
>
> the idea is if mailbox is there i can retrieve/monitor the mails if anything
> goes wrong ; but is it possible in postfix?
This is how ETRN works:
1) The SMTP client sends an ETRN command to the SMTP server.
2) The SMTP server searches the queue and delivers the mail.
The Postfix ETRN implementation overrides the defer_transports
setting, so you can use that to hold mail in the queue until ETRN.
Wietse
