[IMail Forum] Relay: addresses vs none

[Dale McDiarmid]

Hello...

I run a small corporate email server where every user is behind a WAN. There are only three public IPs servicing all of our users. We have perhaps a dozen employees who email from home outside the WAN or while travelling.

Is it safer for me to relay for these three addresses because it's difficult for spammers to spoof an address, or is it safer for me to relay for no one because authentication is more difficult to bypass than spoofing and address?

TIA,
D.




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