[Mailman-Users] posts building up in /var/spool/mailman/in

[ssaini]

o retrieve data from 
https://publicsuffix.org/list/public_suffix_list.dat: [Errno 97] Address family not supported by protocol>
Mar 02 11:38:57 2023 (189331) Unable to retrieve data from 
https://publicsuffix.org/list/public_suffix_list.dat: 

but I think this is related to some posts to unknown domains.

Could I get some advice to find out what else I should be looking into 
to debug this issue.


Kind Regards
ssaini
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[Mailman-Users] Re: posts building up in /var/spool/mailman/in

[ssaini]

```
If urllib2.urlopen throws an exception, you need to figure out why. 
Does

```
wget https://publicsuffix.org/list/public_suffix_list.dat
```
retrieve the data?


After posting the message to this list I checked if the mailman server 
could resolve https://publicsuffix.org and it failed thus for our 
incident it was related to a firewall rule that allowed outbound 443 
traffic being revoked which caused the delay in delivering and build up 
of posts. After the rule was added back the spooled mailman posts in the 
"in" directory were delivered within minutes.

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