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Sendmail configuration

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Submitted by admin on Tue, 06/10/2008 - 14:21

Edit /etc/aliases file  and add a “root: username_to_forward_to” to forward all ‘root’ messages to your personal email address.  Put in the full email address if it is not on the asterisk system itself.
Then run  
/usr/bin/newaliases
to restart the service.

If emails are not received you must set up masquerading in sendmail.  These still may be rejected if the email server requires the source of the email to also resolve to the same DNS that sendmail is masquerading as.
To enable this, add the following lines to the /etc/mail/sendmail.mc file:
MASQUERADE_AS(domain.com)dnl
FEATURE(masquerade_envelope)dnl
FEATURE(masquerade_entire_domain)dnl
MASQUERADE_DOMAIN(domain.com)dnl
 

Put a “dnl” in front of the line ”EXPOSED_USER (`root’) dnl”.  This enables host masquerading for root as well which is disabled by default.
Update the Sendmail configuration files using the m4 macro processor to generate a new sendmail.cf file by executing the following command:
# m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf
To get the Sendmail macro file, the sendmail-cf package must be installed on the system.
After creating a new /etc/mail/sendmail.cf file, restart Sendmail for the changes to take effect. To do this, use the following command:
# service sendmail restart
 
nano /etc/asterisk/vm_general.inc
 
change serveremail=vm@asterisk to whom ever you want it to appear voicemail emails are coming from.

NOTE: If you are installing on a LAN or do not have a domain resolving to the IP of the VPS, Sendmail will hang for a couple minutes everytime you reboot.  To prevent this your VPS hostname should end with .local or .localhost.  So, for example, instead of naming the VPS hostname 'powerpbx' it should be named 'powerpbx.local'.  The manual method is to edit your /etc/hosts file.  There should be 2 lines.
127.0.0.1 localhost.localdomain localhost
yourIPaddress yourhostname.local yourhostname yourhostname

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