flora-6: init list.pub.solar mail DNS records #2

Merged

b12f merged 4 commits from dns/add-list-mail-records into main

2023-02-24 19:49:05 +00:00

Author	SHA1	Message	Date
teutat3s	f3dd7be010	dns: add list.pub.solar to the SPF TXT record for pub.solar, allowing flora-6 to send mails on behalf of admins@pub.solar	2023-02-08 19:46:30 +01:00
teutat3s	132ceeecb0	dns: use new SPF record for greenbaum MX	2023-02-08 12:56:50 +01:00
teutat3s	9ee9345192	Fix DMARC policy for list.pub.solar Our _dmarc TXT record by default protects all subdomains, so an adversary can't send mails on behalf of any subdomains (p=reject, p stands for policy). We add a _dmarc.list TXT record with the same policy to allow sending mails via list.pub.solar's postfix. See https://dmarcly.com/blog/how-dmarc-works-with-subdomains-dmarc-sp-tag for more context	2023-02-03 13:08:56 +01:00
teutat3s	db234cdb5b	flora-6: init list.pub.solar mail DNS records - TXT spf record - A record because mail servers don't like CNAME - MX record for subdomain list.pub.solar	2023-02-02 22:50:34 +01:00