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Relay one way only

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Mag0007

MIS
Feb 15, 2005
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Is it possible to have sendmail only send email (not receive email)?

Is it possible to only sendmail email from 127.0.0.1?

 
>Is it possible to have sendmail only send email (not receive email)?

Yes. If you shutdown the sendmail daemon the system will still process e-mail out to the internet. Be aware that if you are having ISP/internet connectivity issues then your e-mail will queue as the daemon is no longer monitoring the queue. You will then have to force the e-mail out of the queue

>Is it possible to only sendmail email from 127.0.0.1?
By doing this you are indicating that messages are being written on the system itself, then yes it will work.



WarpZero Technologies
 
How about simply setting up a firewall rule to not accept traffic on port 25 for anything other than the local network and localhost?
 
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