On 08/06/13 17:49, Stan Hoeppner wrote:
Nikolas, please do not reply off-list. Always reply to the list unless
there is a good reason not to (such as a shouting argument with another
user, a thread drifts wildly off topic, you are asked to, etc).
On 6/7/2013 11:20 PM, Nikolas Kallis wrote:
On 08/06/13 14:09, Stan Hoeppner wrote:
On 6/7/2013 10:50 PM, Nikolas Kallis wrote:
Also, thanks for the information about
'reject_unknown_reverse_client_hostname'. I can't tolerate accidently
rejecting spam. I have recently learn't that a PTR record is not a DNS
requirement, and as so, will receive mail from clients that do not have
a PTR record setup for their host.
This is a mistake. RFC may not, but SMTP BCP requires rDNS. You'll see
why before too long.
No, its not a mistake. Read RFC 2821 and you'll see it makes no
reference for a host needing a valid PTR record. RFC 1035 (domain name
system) doesn't either.
As you gain experience running a mail server, and gain knowledge from
this list, you will realize that while RFCs guide the development of the
internet and set standards, they are not the only standards, and/or
sometimes they fall short of what is needed in the real world.
You will find that there are things widely implemented due to Best
Current Practices that are not mentioned as SHOULD or MUST in RFCs.
I have been replying e-mail addresses I in the reply-to only. I think
Postfix's Majordomo has an issue. I noticed it was acting a bit funny in
regards to this myself yesterday, but haven't had time to getting around
brining it up.
Following the RFC is the only way in maintaining standards. I am aware
RFC 2821 is out of date in modern times, but its no excuse for lapsing
on professionalism and going off doing your own thing - I mean, you can,
but it just creates problems.
