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
to
whitelist them, some stuff is more easy fixed at the sender i.e
sending
via relay etc
only whitelist dynamic ips if there is port 25 open on it, 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
