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Add null SPF, DMARC, and MX records for automatically generated autoconfig, autodiscover, and mta-sts subdomains; add null MX records for custom A-record subdomains

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All A/AAAA-resolvable domains that don't send or receive mail should have these null records.

This simplifies the handling of domains a bit by handling automatically generated subdomains more like other domains.
This commit is contained in:
Joshua Tauberer
2021-05-09 08:59:44 -04:00
parent e421addf1c
commit e283a12047
3 changed files with 78 additions and 81 deletions
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8
CHANGELOG.md
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@@ -4,9 +4,15 @@ CHANGELOG
In Development
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* Migrate to the ECDSAP256SHA256 DNSSEC algorithm. If a DS record is set for any of your domain names that have DNS hosted on your box, you will be prompted by status checks to update the DS record.
Mail:
* Roundcube's login cookie is updated to use a new encryption algorithm (AES-256-CBC instead of DES-EDE-CBC).
DNS:
* The ECDSAP256SHA256 DNSSEC algorithm is now available. If a DS record is set for any of your domain names that have DNS hosted on your box, you will be prompted by status checks to update the DS record at your convenience.
* Null MX records are added for domains that do not serve mail.
v0.53a (May 8, 2021)
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