New Installation Help

[Mark Sapiro]

On 3/25/24 13:21, Will wrote:

> Double sorry because my first reply wasn't to the list.  Sorry again, I 
> thought that was the important part.  Here is another attempt where I 
> think I captured everything.  The only thing I see is that postfix is 
> setting the sender to <>.  But isn't that just a warning?  I don't see 
> the same warning if the milter is disabled though.


That's because DSNs are always sent from <> to avoid further bounce DSNs.


> Mar 26 10:52:54 dcsnow postfix/smtpd[9946]: connect from 
> mail-io1-f45.google.com[209.85.166.45]
> Mar 26 10:52:54 dcsnow postfix/smtpd[9946]: D78F410A0C41: 
> client=mail-io1-f45.google.com[209.85.166.45]
> Mar 26 10:52:54 dcsnow postfix/cleanup[9952]: D78F410A0C41: 
> message-id=<CADk0RN46UssD4xrcHQ8fKXZiUfwbhbfe_vN5QP9orx9OHkamuA at mail.gmail.com>
> Mar 26 10:52:55 dcsnow postfix/cleanup[9952]: D78F410A0C41: 
> milter-discard: END-OF-MESSAGE from 
> mail-io1-f45.google.com[209.85.166.45]: milter triggers DISCARD action; 
> from=<wyonker at gmail.com> to=<wyonker at dcsnow.com> proto=ESMTP 
> helo=<mail-io1-f45.google.com>
> Mar 26 10:52:55 dcsnow postfix/smtpd[9946]: disconnect from 
> mail-io1-f45.google.com[209.85.166.45] ehlo=2 starttls=1 mail=1 rcpt=1 
> bdat=1 quit=1 commands=7
> Mar 26 10:52:55 dcsnow MailScanner[8667]: New Batch: Scanning 1 
> messages, 2941 bytes
> Mar 26 10:52:55 dcsnow MailScanner[8667]: Reject message 
> D78F410A0C41.ACA73 from wyonker at gmail.com with report 
> /usr/share/MailScanner/reports/en/rejection.report.txt

MailScanner itself rejected the message.


> Mar 26 10:52:55 dcsnow sendmail[9953]: 42QEqtJl009953: 
> Authentication-Warning: dcsnow.com: postfix set sender to <> using -f
> Mar 26 10:52:55 dcsnow sendmail[9953]: 42QEqtJl009953: from=<>, 
> size=555, class=0, nrcpts=1, 
> msgid=<202403261452.42QEqtJl009953 at dcsnow.com>, relay=postfix at localhost

And is apparently sending the rejection via the Postfix compatibility 
`sendmail` command.

...

The message is being delivered to MailScanner and rejected by 
MailScanner presumably because it scores as spam and Spam Actions 
include bounce.

-- 
Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan