editor
471
edits
Email Aliases: Difference between revisions
Describe alias chaining (makes explaining the wildcard problem easier)
(Use better headers) |
(Describe alias chaining (makes explaining the wildcard problem easier)) Tags: Mobile edit Mobile web edit |
||
| (3 intermediate revisions by the same user not shown) | |||
|
These will then be listed in the Alias list as:
:[[File:Clueless-email-alias-example3.png|none|600px|thumb|Alias for Bob]]
== Alias 'chaining' ==
Aliases are processed repeatedly until the chain stops. If you view the headers of a message you can see how many times the aliases were processed - each pass adds a header "X-AA-Info: Message ran through Aliases".
So if you have aliases of:
a@example.co.uk b@example.co.uk
b@example.co.uk c@example.co.uk
c@example.co.uk d@example.co.uk
then mail sent to any of these addresses will be sent to "d@example.co.uk"
== Wildcard entries ==
You can set an alias where the left hand side of the 'Email to' is empty. This will show in the alias list as something like:
-any-@example.co.uk catchall@example.co.uk
But the instructions on the web page are a little misleading - this is indeed a catch all to 'match any addresses for which there is not another alias (even if there is a mailbox that matches)' - but the alias file is processed repeatedly until there are no more aliases, and you can find most mail gets sent to the catch all address. You need aliases for the delivery mailboxes - entering the mailbox address in the domain in the 'Email to' with an empty 'Send to', so you get something like:
mailbox_name@example.co.uk -unchanged-@example.co.uk
and this will terminate the alias chain and delivery to that mailbox will happen.
If you're not careful on the web interface, you can end up pressing 'OK' where all the fields are empty. This gives an entry in the alias list something like:
-any-@example.co.uk -unchanged-@example.co.uk
which just confuses the situation. Especially if you have this entry as well as a catch all entry with a 'Send to' address: -then addresses with their own aliases will be delivered twice (once to the catch all, once as specified in their own alias); addresses without their own aliases will be delivered once (to the catch all) and the sender will receive a 'mail rejected' reply (as there's no specific alias).
== Deleting ==
Erase a record, you can select it and select erase. This sounds obvious, but in a modern release of
==Help with Other Email Features==
| |||