mail() sent from address

Question

How can I change the default from address for the php mail() function. I know I can do it on a per-send basis, but I'd like to change the default setting as well.

Answer 1

You can set that in php.ini with "sendmail_from".

From the php.ini:

; For Win32 only.
; http://php.net/sendmail-from
;sendmail_from = [email protected]

; For Unix only.  You may supply arguments as well (default: "sendmail -t -i").
; http://php.net/sendmail-path
sendmail_path = /usr/sbin/sendmail -t

If you haven't got access to php.ini for some reason, you could set the following in a .htaccess file:

php_value sendmail_from [email protected]

Note: you can't set sendmail_path in this way for security reasons. Source: http://nl.php.net/manual/en/mail.configuration.php

Answer 2

I have done this for our webmasters in the MTA (smtp server). If your MTA is postfix, you could use the sender_canonical_maps lookup table. From man 5 postconf:

sender_canonical_maps (default: empty)
       Optional address mapping lookup tables for envelope and  header  sender
       addresses.   The  table  format  and  lookups are documented in canoni‐
       cal(5).

   Example: you want to rewrite the SENDER address  "[email protected]"  to
   "[email protected]", while still being able to send mail to the RECIP‐
   IENT address "[email protected]".

   Note: $sender_canonical_maps is processed before $canonical_maps.

   Example:

   sender_canonical_maps = hash:/etc/postfix/sender_canonical

Answer 3

You need to define a header where you put "From: Toto toto < [email protected] >" (without spaces, but the interface remove the contents of < >).

To change it in default setting, you should do this not in PHP, but in your MTA. Rewrite the from address to what you want.