Robert Schetterer skrev den 2013-01-26 08:22:
as wrote, there is always a chance to whitelist something, but big
mailplayers dont do it or cant do by tec reasons
i.e if your sednded mail is comming from dynips it makes less sense
dynip should NOT be used for mail sending (without SMTP auth)
to
whitelist them, some stuff is more easy fixed at the sender i.e
sending
via relay etc
On 01.02.13 20:02, Benny Pedersen wrote:
only whitelist dynamic ips if there is port 25 open on it,
so any open relay and SMTP redirect gets whitelisted?
if its not
then its not a smtpd auth relay server, if it was it would be sending
from an blacklisted ip (dynamic) even if senders used smtpd auth it
would not help senders
clients that use smtpd auth is mostly using dynamic ips to static ips
to relay there mails, and that static ip is not listed for spamming
on dnsbl hopefully
clients that do SMTP auth should be exempted from blacklisting/whitelisting.
(if you don't trust SMTP auth from an IP, simply don't allow the connection
at all)
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