On Sun, Jan 21, 2024 at 09:39:06AM +0100, Paul Menzel via Postfix-users wrote:
> pg.de is currently a parked domain, so our users will not going to
> email there, and I would like to reject such messages submitted to us,
> that the email client shows an error as it’s done, when, for example,
> users submit a message to a colleague at our institute, and we now
> that address does not exist, because the account was closed or it does
> not exist.
>
> Could you recommend a way how to best set this up, best with a custom error
> message per domain? For example:
>
> Reject: Address has a typo: Should .pg.de .mpg.de?
>
> `master.cf` currently contains:
>
> 141.14.17.8:submission inet n - n - - smtpd
> -o myhostname=mx.molgen.mpg.de
> -o smtpd_recipient_restrictions=$mx_smtpd_recipient_restrictions
> -o smtpd_client_recipient_rate_limit=50
main.cf:
indexed = ${default_database_type}:${config_directory}/
transport_maps = ${indexed}transport
transport:
.pg.de error:5.1.2 Typo domain .pg.de should be .mpg.de
--
Viktor.
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