Add mailsink, a discard-only SMTP server for test networks

Accepts mail for an allowlist of domains from allowlisted client networks
and discards it on receipt. No outbound code, no logging, scratch image;
all settings are Dockerfile build arguments compiled into the binary.

This commit is contained in:

jcoffey-dev

2026-09-24 12:36:16 -07:00

commit 92b8688033

7 changed files with 679 additions and 0 deletions

.gitignore

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				`/mailsink`