On Wed, Sep 27, 2017 at 07:00:39PM -0700, Michael Fox wrote:
> > This is an obsolete option in Sendmail that violates decades old SMTP
> > standards, CNAME canonicalization of recipient domains went away in
> > RFC 2821 and there are many email domains that are aliases where the
> > mailbox addres
> > On Sep 26, 2017, at 11:23 PM, Michael Fox wrote:
> >
> > BTW, the mail provider found that the default sendmail config and their
> own
> > customized config both rewrote the From: header when the From: address
> was
> > for a domain that had a CNAME record. They said this is a config option
>
J Doe skrev den 2017-09-27 22:20:
[snip]
Is there a way to achieve this or as you noted, are whitelists to be
avoided ? If whitelists are to be avoided what is the best practice
for handling this scenario ?
why not add example.org on google apps mx ? :=)
if useers not wanting your mailserver
> On Sep 27, 2017, at 2:08 PM, Benny Pedersen wrote:
>
> J Doe skrev den 2017-09-27 19:49:
>
>> I recently configured Postfix 3.1.0 on a low-volume, Internet facing
>> server. Mail operations are normal, but I had two questions regarding
>> backscatter.
>
> ...
>
>> 1. From what I understand
J Doe skrev den 2017-09-27 19:49:
I recently configured Postfix 3.1.0 on a low-volume, Internet facing
server. Mail operations are normal, but I had two questions regarding
backscatter.
...
1. From what I understand, “backscatter” refers to e-mails such as
non-delivery reports being sent ba
Hello,
I recently configured Postfix 3.1.0 on a low-volume, Internet facing server.
Mail operations are normal, but I had two questions regarding backscatter.
1. From what I understand, “backscatter” refers to e-mails such as non-delivery
reports being sent back to the originator of a spam mes
On 26.09.17 12:02, Kirk Bocek wrote:
Thank you Benny and Wietse. Things are better now. However I have
lots of log entries like:
Sep 26 11:57:52 amber postfix/smtpd[11213]: NOQUEUE: reject: RCPT
from unknown[10.0.2.1]:
554 5.7.1 : Sender address rejected: No
Spam; from=
r...@wysina.com.tw> to
