Barracuda Spam Firewall - 421 Error: too many messages in one session

popowich

EQ Forum Admin
Staff member
Hello,

Are your Barracudas dropping connections from a legitimate sender with the following error?

421 Error: too many messages in one session


If you are deferring connections from a sender and believe that it is legitimate traffic you can go to the Advanced -> Email Protocol tab and increase the value of Messages Per SMTP Session to a more appropriate value for your mail hosting environment.
 
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