Mail-In-A-Box runs great on a VPS.
Many thanks to the makers of this wonderful software!
I have successfully managed to set up a catch-all alias that forwards all mails to any email address of my domain to my mailbox.
Now I want to be able to send via my mailbox also from any email address of my domain.
My mailbox is email@example.com
I receive via catch-all a mail on firstname.lastname@example.org in my mailbox.
I want to reply to this mail as email@example.com by entering firstname.lastname@example.org in the “FROM” field.
However, the recipient then receives an email from email@example.com.
How can I send as firstname.lastname@example.org or any other alias without having to manually create a separate identity for each alias?
I have now created an alias and set myself as the permitted sender.
I have also created an additional identity via Roundcube.
Then I tried sending via Outlook 2019 (connected via ActiveSync), entered the created alias in the “From” field and sent a test email.
However, the address of my mailbox was again used as the sender instead of the alias.
Was my procedure correct?
Is sending as an alias only possible under Roundcube?
What would be the correct procedure?