Hello Postfix Community,
First off, I apologize if answers to my questions are well-known but
before posting, I did spend a fair amount of time researching all of the
Postfix READMEs, HOWTOs, etc. to try and understand this but apparently
I am not finding the right information.
Thanks in advance for your insights…
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#### The scenario:
* All domains, users, aliases, etc. are contained in SQL tables and
defined in the main.cf as ‘virtual_mailbox_domains’,
‘virtual_mailbox_maps’, etc.
* Two users are defined in the ‘virtual_mailbox_maps’ table.
* user1_at_example.com
* user2_at_example.com
* There are two aliases defined in the ‘virtual_alias_maps’ table:
* user2_at_example.com —> user1_at_example.com
* @example.com —> user1_at_example.com
#### Observed behavior:
* If I send an email to user1_at_example.com, it is delivered as
expected to the user1 mailbox.
* If I send an email to user2_at_example.com, because of the alias, it
is also delivered to the user1 mailbox but not to the user2 mailbox.
* I expected a copy of the email to also be delivered to the user2
mailbox but it appears the alias prevents this and I’m not sure not
sure why.
* However, if I remove the alias for user2, then emails sent to user2
are delivered to the user2 mailbox (which makes sense) but nothing gets
delivered to user1.
* I expected the wildcard alias (@example.com) to cause a copy of the
email to also be delivered to the user1 mailbox.
* Last, to verify that the domain wildcard alias works, emails sent to [
ANYTHING ]_at_example.com are delivered to user1_at_exmaple.com just as
I expected (W00T!!!). :=)
#### Recap:
* When both a 1:1 alias & a user are configured for a given email
address, why are emails sent to the alias\user only delivered to the
alias target?
* When a domain wildcard alias & a user are configured, why are emails
sent to the user only delivered to the user and no copy to the alias
target?
