Explain what is HELO Randomization Prevention?

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Uncle Seryozha2013-05-11 06:53:53

Mail server

Uncle Seryozha, 2013-05-11 06:53:53

I met that mail servers may have such a thing to check the domain of the sender's server, but I did not understand anything after reading English sources.

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R

rasa, 2013-05-11
@Protos

If you translate "HELO Checks" from here :

Does the sending server change the name (represented by different HELOs) a certain number of times within a certain period of time? Normally a server doesn't need to change its name that often. For example, changes the name 5 times in 5 days? As a rule, in front of you is a spammer.