16 Feb
2007
16 Feb
'07
10:22 a.m.
Schmid wrote:
Well to use other SMTP relay than the one from the used ISP is not allways possible, and should be prevented anyway.
Why ? there is no risk if encryotion/authentication is used.
nearly 100% of the spam is caused by direct senders, very seldom they use the ISP's Relay. so lets close that big spamfriendly hole.
This is why SPF + authentication on outgoing smtp should avoid this "direct senders" spam origin.
Best regards,
--
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