The IP addresses listed in the monitoring report belong to hostmonster.com <http://hostmonster.com/>, it looks like. Are those IP addresses you would expect LISTSERV’s mail to be coming from?

Is the address in questions actually subscribed to the mailing list?

If the answer to either of these questions is ’no’, then I would suspect that some other address is subscribed to the mailing list that is forwarding to the gmail address.

-jwgh

On Jul 16, 2022, at 9:13 AM, Peter M. Weiss <[log in to unmask]> wrote:

> This week, I have received two similiar bounce reports for the same Gmail subscriber recipient.  This list had had 17 messages distributed in this 1-week time-frame. The other 80 Gmail subscribers are not having this issue.  I checked with our site's admin and NTF. 
> 
> That particular email address is also a QUIET: owner and does NOT receive list's admin messages (errors, moderation).
> 
> Thoughts? e.g., listserv Peer backbone?
> 
> 1 07/11 07/11 <[suppressed]@GMAIL.COM> <mailto:[log in to unmask]>
>                 Last error: 5.7.25 550-5.7.25 [74.220.200.20] The IP address
>                             sending this message does not have a 550-5.7.25 PTR
>                             record setup, or the corresponding forward DNS
>                             entry does not 550-5.7.25 point to the sending IP.
>                             As a policy, Gmail does not accept messages
>                             550-5.7.25 from IPs with missing PTR records.
>                             Please visi... (165 bytes suppressed)
> 
>  1 07/15 07/15 <[suppressed]@GMAIL.COM> <mailto:[log in to unmask]>
>                 Last error: 5.7.25 550-5.7.25 [67.20.84.70] The IP address
>                             sending this message does not have a PTR 550-5.7.25
>                             record setup, or the corresponding forward DNS
>                             entry does not point 550-5.7.25 to the sending IP.
>                             As a policy, Gmail does not accept messages from
>                             550-5.7.25 IPs with missing PTR records. Please
>                             visit ... (165 bytes suppressed)
> -- 
> 
> Pete  <https://www.llrx.com/author/pete-weiss/>
> Sr. Systems Configurator, emeritus
> 
> To unsubscribe from the LSTSRV-L list, click the following link:
> http://peach.ease.lsoft.com/scripts/wa-PEACH.exe?SUBED1=LSTSRV-L&A=1 <http://peach.ease.lsoft.com/scripts/wa-PEACH.exe?SUBED1=LSTSRV-L&A=1>

############################

To unsubscribe from the LSTSRV-L list:
write to: mailto:[log in to unmask]
or click the following link:
http://peach.ease.lsoft.com/scripts/wa-PEACH.exe?SUBED1=LSTSRV-L&A=1