On Tue, May 31, 2022 at 12:55:42PM -0300, SysAdmin EM wrote:
> I am checking the mail queue of my postfix server and I am seeing errors in
> writing mail accounts, which refer to real domains of free mail providers
> such as hotmail, gmail, yahoo.
>
> BC2CC607AF 881286 Tue May 31 05:19:53 webchec...@kiusys.com
> (connect to hotmaul.com[54.159.98.68]:25: Connection timed out)
> BAF5D60E06 3071 Fri May 27 03:32:45 r...@kiusys.com
> (connect to hormail.com[104.215.95.187]:25: Connection timed
> out)
> negritaa...@hormail.com
main.cf:
indexed = ${default_database_type}:${config_directory}/
transport_maps = ${indexed}transport
transport:
hotmaul.com error:5.1.2 Bad destination domain
hormail.com error:5.1.2 Bad destination domain
Be mindful of the fact that some apparent typo-squatting domains could
be legitimate or become legitimate at some point in the future. However
unlikely that might seem for the above examples.
Domains or users mapped to the "error" transport are rejected at the
SMTP stage, and so avoid accept + bounce.
--
Viktor.
