Martin Steigerwald:
...
> Part of that functionality would also be included in some appointment
> planning software like: https://framadate.org/abc/de/

It says code is here:
https://framagit.org/framasoft/framadate
but I don't see any code. If there is a git repo, I could take it from
there.

...
> Mail server is complex. Very complex to get right. Especially with to big
> to fail (really?) providers like Gmail and Microsoft 365. They refuse to
> accept legitimate mails just cause you did not implement the latest
> incarnation of DKIM, DMARC, SPF and then some. However they send out all
> kinds of crap and do not care a single bit. I have Rspamd blocking rules
> for crap that abusers of Gmail, Microsoft 365 and so on send out.

I have spf, I don't really see the point with DKIM and DMARC, but plan
to set up DNSsec. I agree on the crap thing you mention.

> You could go for some cloud based approach.
...

I have my own site, hopefully I can run the software on it.

> https://wiki.alpinelinux.org/wiki/Nextcloud

Ok, it seems to be php-based and there seems to be a heavy dependancy on
web and sql.

///

I think the attendance part is the most important to make.

Regards,
/Karl Hammar