Cannot resolve support@ alias

[Dominik George]

Hi,

I am facing a strange issue here, where I cannot resolve a virtual
alias with the local part support@.

I have a domain example.com in $virtual_mailbox_domains. The virtual
transport sends mail on to Dovecot. For virtual aliases, I use a basic
hash table, containing:

  i...@example.com        n...@example.com
  supp...@example.com     n...@example.com
  suppo...@example.com    n...@example.com

The strange thing is that only the first and third aliases work. The
support@ alias is not resolved, Postfix just sends it on to Dovecot
with supp...@example.com as final recipient.

Is there some special-casing for a support@ local poart of some kind?
I am really lost here…

Cheers,
Nik

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