rejected commands from x.x.x.x due to pre-greeting traffic

popowich

EQ Forum Admin
Staff member
Hello,

Are you trying to fix this error in your sendmail logs?

rejected commands from x.x.x.x due to pre-greeting traffic

The error is logged because the source is sending smtp commands faster than your configured setting for greet_pause.

In theory, when this is enabled, it should block spamming software that tries to send as fast as possible while not being able to handle an smtp response delay.

To override the setting for a couple sources use the following as an example in your /etc/mail/access file:

GreetPause:localhost 0
GreetPause:127.0.0.1 0

After updating your access file run:

makemap hash access < access
 
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