How to upgrade Mailman and keep Let's Encrypt ?

pkagan at pkagan at
Wed Jul 28 17:01:36 UTC 2021

It's time to move to 13 you are mistaken...

just follow those instructions and remove the other one if you do not need

Also, it's very important to upgrade to freebsd 13. 
-----Message d'origine-----
De : owner-freebsd-questions at
<owner-freebsd-questions at> De la part de William Dudley
Envoyé : Wednesday, July 28, 2021 12:31 PM
À : freebsd-questions <freebsd-questions at>
Objet : How to upgrade Mailman and keep Let's Encrypt ?


I'm running 11.4-RELEASE-p9, and obviously, it's time to move to 12.

I'm running Mailman 2.1.34 which uses deprecated Python 27.

I realized that when I move to FreeBSD 12, I will no longer have Python 27,
so Mailman 2 will no longer work.

When I do "pkg search mailman), I find the following:

mailman-2.1.34                 Mailing list manager with user-friendly web
py38-mailman-3.3.1             GNU Mailing List Management System, Core

As an experiment, on a spare machine, I tried:

pkg install py38-mailman-3.3.1

However, there is a conflict between py38 and py37, and so pkg wants to

py37-acme-1.16.0,1             ACME protocol implementation in Python
py37-certbot-1.16.0,1          Let's Encrypt client

That won't do, as I host several websites on the same machine with the
mailman installation and they all want to have https (obviously).

How do I solve this?

Bill Dudley
hobby sysadmin
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