On linux run certbot renew to check if certificate needs to be renewed. Does nothing if not due. The letsencrypt is only good for 3 months, and then needs renewal. pmail.com is still good, but community has expired. Haven't done on windows, so process might be different. Don't know if server has to be restarted after renewal.

Good for pmail.com

Common Name
demeter.pmail.gen.nz
Issuer Name
Country
US
Organization
Let's Encrypt
Common Name
R12
Validity
Not Before
Mon, 15 Sep 2025 10:32:28 GMT
Not After
Sun, 14 Dec 2025 10:32:27 GMT
Subject Alt Names
DNS Name
demeter.pmail.gen.nz
DNS Name
pmail.com
DNS Name
www.pmail.com

Community showing expired for me (Note: I use GMT +1000 timezone for Guam, so others may not be showing as expired yet?)

Common Name
community.pmail.com
Issuer Name
Country
US
Organization
Let's Encrypt
Common Name
R10
Validity
Not Before
Thu, 26 Jun 2025 00:10:21 GMT
Not After
Wed, 24 Sep 2025 00:10:20 GMT
Subject Alt Names
DNS Name
community.pmail.com

I've already notified David Harris who forwarded the info to the site admin.

With my site, it is just running certbot renew.
Don't know if different with Windows, and I use apache.
Don't know if server needs to be restarted after renewal.
Think apache did need a restart.

renewed now till December...