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Paul
  • Member for 11 years, 2 months
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7 votes
2 answers
919 views

If a lower priority mail server only serves code 450, will sending servers on retry use a higher priority server?

4 votes
2 answers
4k views

TLS v1.3 active despite not being enabled in Nginx config

3 votes
1 answer
271 views

When using a subdomain with DMARC configured to send RUA, is it necessary to add DMARC reports TXT record?

1 vote
1 answer
3k views

SpamAssassin local.cf DMARC configuration recognizes reject and none, but not quarantine

1 vote
1 answer
2k views

Is it possible to schedule a python script to run at the end of logrotate?

0 votes
1 answer
55 views

Is it likely that RUF reports can be used to generate negative reputation for my server?

0 votes
0 answers
48 views

What is the difference between BEFORE, SENTBEFORE, and SAVEDBEFORE?

0 votes
0 answers
204 views

Which DS record will a validator choose when there are multiple valid DS records?

0 votes
2 answers
106 views

Is there a technical requirement to serve 404 responses?

0 votes
1 answer
181 views

Is the Postfix From: address RFC-compliant for cron jobs?

0 votes
2 answers
5k views

How do I configure netplan in Ubuntu 22.04 with dynamic IPv4 and static IPv6?

0 votes
1 answer
91 views

Can groups have write access when owners don't?

0 votes
1 answer
969 views

Can't get opendkim to work on Ubuntu

0 votes
2 answers
293 views

How to serve Nginx using just a Rackspace server IP address?

-1 votes
1 answer
520 views

Automatically whitelist Postgrey for outbound email?