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@mdsazzad0002 mdsazzad0002 released this 30 Sep 20:10
· 152 commits to main since this release
0.9
f50a67f 
Make mail DNS checks give the same answer every time

Results changed between runs because a lookup drust could not answer fell
back to PHP's cached resolver, mixing two sources; a failed lookup also moved
the expected MX to another candidate, and each check started a new
PublicDnsLookup, so a page made about ten sequential drust calls.

- PublicDnsLookup is scoped per request and batches lookups (2 calls for the
  guide and Verify). An unanswered lookup is recorded as failed; PHP is used
  only when drust is unreachable, and then for everything.
- Verify DNS reports an unanswered lookup as "not checked, try again", never
  as a wrong record; the mail host keeps Postfix's name when a lookup fails,
  and --apply leaves it unchanged.
- The Verify and hostname endpoints return the error as JSON instead of a
  500, and drust caps each lookup at 6 seconds.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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