[Dovecot] anti-spam+anti-malware suggestions

[Charles Marcus]

On 2010-10-20 10:18 PM, Denny Lin wrote:
> Postfix's address verification is also quite useful for popular domains
> like gmail.com, hotmail.com, yahoo.com, etc.

If you mean you are using *sender* address verification on these
domains, you will eventually get blacklisted by them if your system has
much traffic from them. Most Mail Admins consider blanket SAV as an
abuse of their systems.

SAV (sender address verification) should be used sparingly, and only
with domains/systems that are ok with you using it.

-- 

Best regards,

Charles