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Last active August 13, 2021 19:56
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Send Mail Configuration : Disable Local Delivery
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readme.md

What I did to disable local delivery. I'll be using the example.com domain.

Requirements:

  • example.com A entry pointing to IP address assigned to one of the eth interfaces.
  • /etc/hosts defining example.com assigned to the very same IP address as above
  • example.com MX records pointing to Google servers (ASPMX.L.GOOGLE.COM, etc)
  • default sendmail installation (mine was on Ubuntu)

Steps are as follows :

#1. vim /etc/mail/sendmail.mc

#2. Add the below 2 lines at the end of the file

define('MAIL_HUB', 'example.com.')dnl

define('LOCAL_RELAY', 'example.com.')dnl

#3. Perform the below given things

$ sendmailconfig

(or /etc/mail/make depending on your distro)

$ service sendmail restart

Now, go ahead and test the mail now. You will see the problem getting resolved now.

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