Hello Viktor,
Thanks for the quick reply. I tried the second variant because it seems less
invasive for the existing
configuration than variant 1. I don't see all the consequences of deleting the
domain from
virtual_alias_domains and adding it to virtual_mailbox_domains.
Unfortunately variant 2 did not work. The generic rewrite does not take place.
So the verbatim.invalid
address is used for the final delivery.
Regards,
Ingo
Am 13.03.25 um 15:17 schrieb Viktor Dukhovni via Postfix-users:
On Thu, Mar 13, 2025 at 02:55:00PM +0100, rog7993--- via Postfix-users wrote:
In simple terms, the configuration looks like this:
/etc/postfix/main.cf:
virtual_alias_domains = example.com
virtual_alias_maps = hash:/etc/postfix/virtual
transport_maps = hash:/etc/postfix/transport
The new requirement is to route some mail
addresses of the mail domain without address rewriting. I am aware that this
could in principle be
realized via a rule in "transport_maps", e.g:
/etc/postfix/transport:
us...@example.com smtp:[some_other_destination]
But then the mail is rejected in the SMTP handshake as soon as it is sent:
Recipient address rejected: User unknown in virtual alias table
As documented, all valid recipients in domains listed in
virtual_alias_domains MUST be rewritten to some real domain,
that's the definition of "virtual" in a "virtual alias domain".
How could this be solved in the existing configuration with virtual_alias_maps?
You have two choices (the first is probably simpler):
1. Remove the domain from virtual_alias_domains, and instead
list it in virtual_mailbox_domains:
main.cf:
virtual_mailbox_domains = example.com
default_database_type = hash
indexed = ${default_database_type}:${config_directory}/
virtual_alias_maps = ${indexed}virtual
virtual_transport = relay:[mailstore.example]
transport_maps = ${indexed}transport
virtual:
...
# Delivered verbatim via $virtual_transport
us...@examp.com us...@example.com
2. Leave the domain alone, but rewrite the recipient address
back to original form during delivery:
main.cf:
virtual_alias_domains = example.com
default_database_type = hash
indexed = ${default_database_type}:${config_directory}/
smtp_generic_maps = ${indexed}generic
virtual_alias_maps = ${indexed}virtual
transport_maps = ${indexed}transport
virtual:
...
# Transient rewrite
us...@example.com us...@example.com.verbatim.invalid
transport:
example.com.verbatim.invalid relay:[mailstore.example]
generic:
# Undo recipient rewrite
us...@example.com.verbatim.invalid us...@example.com
_______________________________________________
Postfix-users mailing list -- postfix-users@postfix.org
To unsubscribe send an email to postfix-users-le...@postfix.org
