By default, this module assumes that you are using the Sendmail mail server. Many people, however, prefer alternatives like Postfix or Qmail due to their superior configuration file formats, reliability, and design. Fortunately, the module can work with any mail server that uses an aliases file in the same format as Sendmail's /etc/aliases.
All that you need to do is tell the module where the aliases file is located instead of having it read the Sendmail configuration and find it automatically. To do this, follow these steps:
Not all mail servers have a standard aliases file, so this module cannot be used with them. Qmail requires a patch before it will read an aliases file, as normally it uses .qmail files in the /var/qmail/aliases directory to define aliases.
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