Tag Archives: alias

Autoresponders and aliases

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The problem: You have a user with multiple aliases, such as a [email protected] username and a general [email protected] alias. You want to set an autoresponder for the main mailbox, but you don’t want to send an autoresponder message to messages directed to the sales alias.

MDaemon actually can do this although it’s not immediately obvious how.

The autoresponder list has a “whitelist”, to find it, open MDaemon –> Accounts –> Account Settings –> Autoresponders –> White List. This list is primarily a list of senders and recipients who should not receive an autoresponder.

Unfortunately this list compares addresses after alias processing has finished, so you can’t just enter an alias to the list. However, you can also match user-defined headers here, and if the header containing the string mentioned is found in the current message, the message won’t receive an autoresponder.

So in this example, you could place “X-MDRcpt-To: [email protected]” in the whitelist. Note that this header exists for all messages, not just messages where aliases are used, it simply contains the address the sender used.

For those that are curious, the \MDaemon\App\autorespexcept.dat file contains the list, for your manual editing pleasure.

Directing subaddresses back to the Inbox

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So you’ve used subaddressing for a while, and now have decided to stop. Maybe you want to switch back to POP3 for some reason and want to route all mail to the Inbox rather than to folders. Lucky you, there is an alias trick to make that happen too!

mailbox+*@example.com = [email protected]

Note that you may need to disable subaddressing for this account before this alias works.

Hopefully a few more aliasing and subaddressing tricks soon.

A subaddressing introduction

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I’d like to introduce everyone to one of MDaemon’s newer features, a potentially powerful one that is woefully under-utilized. Here is the entry from the release notes: 

  * [6182] SUBADDRESSING *
  
    Added support for subaddressing.  Subaddressing is a system for including 
    a folder name in an email address.  Replies or emails sent to that email 
    address will pull the folder from the address and move the message into 
    folders automatically without the need to setup filtering rules.
    
    The syntax is: "mailbox+folder@domain".  So, for example, the email
    address "[email protected]" would route messages directly into 
    [email protected]'s "ietf" IMAP folder (assuming that folder exists).  
    Nested folders can be specified using period characters.  For example, 
    "[email protected]" would route messages directly into 
    [email protected]'s "industry\ietf" IMAP mail folder (again, assuming that
    folder exists).  Underscores are used for spaces in folder names.  For
    example, "[email protected]" would route messages 
    directly into [email protected]'s "my friends\frank" IMAP mail folder.
      
    The folder must exist prior to being used with subaddressing.  Otherwise, 
    the address will be treated as unknown.  This is necessary to prevent
    abuse.

Oh, and good to know, you need to turn this feature on before you can use it:

    A new switch has been added to the Filters tab within the account editor
    which will allow you to enable/disable subaddressing on a per account
    basis.  As a result of the need to delimit using the + character this 
    feature will be unavailable to accounts which include + in their email
    address local-part (mailbox).
    
    This feature can be shut down globally irrespective of individual account
    configuration via a new switch on the Misc Options|Misc UI.  By default,
    each account has this feature disabled individually.

Okay, so with that out of the way, what can you do with this feature?

Well, say you’re a IMAP or WorldClient user most of the time, but want to use a cellphone that doesn’t support uploading sent messages to IMAP. No problem, have your phone automatically BCC mail to [email protected] (assuming you’re [email protected], of course).

Another example would be to route mail you only want to receive for a short period of time directly to a specific folder, but then once you’re done with that fake address, delete the folder and instantly stop receiving mail.

I’ll have a few more goodies that build on subaddressing shortly, stay tuned.