I'm trying to get PHP to send email messages using Swift Mailer 3.0.0. This library can use three transport methods: SMTP, sendmail and PHP mail() function.
The sendmail methods fails in my PHP script, and I get this message in /var/log/mail.log:
May 6 16:47:13 ubuntu postfix/smtpd: fatal: open /etc/postfix/mysql-virtual_relaydomains.cf: Permission denied
Here are mysql-virtual_relaydomains.cf permissions:
-rw-r----- 1 root postfix 224 2009-12-11 15:26 mysql-virtual_relaydomains.cf
If I make mysql-virtual_relaydomains.cf readable by everyone, everything runs fine, but I don't know if it's a "clean" solution.
I'm also considering adding the website's user (webXX) to the postfix group, which would probably fix the problem as well.
Do you have any advice regarding this issue? What would be the best way to solve it? If it's possible, I would like to find a solution which doesn't require to make manual changes to the file permissions for every user needing it.
(Note: PHP runs using mod_fcgi and suexec.)