hMailServer has consumed DMARC policy for years and produced nothing for the domains whose mail it receives. This pre-release adds DMARC aggregate reporting (rua, RFC 7489). Every evaluation is aggregated per UTC day and per policy domain, passes included, and the Appendix C XML is mailed to the addresses a domain asks for with rua=. It stays inert until DmarcRptFromAddress is set.

What the upgrade involved

The database schema moves to 6015. Upgrading from pre1 requires DBUpdater. Known limitations: FETCH BINARY on a composite section returns an empty literal, so BINARY[], multipart and message/rfc822 sections come back empty (leaf parts are correct). DMARC report data lives in memory, so a restart before the daily send loses that day's statistics.

Reporting

• RFC 7489 §7.1 external-destination verification is enforced. A rua target outside the policy domain's own organizational domain is used only when <policy-domain>._report._dmarc.<target-domain> says it wants the reports.
• Forensic (ruf) reports are deliberately not implemented.
• Utilities.SendTlsRptReports(IncludeCurrentDay) and its twin SendDmarcReports send what has been collected so far, not just days that are over. Both refuse, statistics preserved, when the From address is unset.

Authentication

• AccountLockoutThreshold counts failures by the name being guessed at, so a distributed attack that never crosses any single IP's auto-ban threshold is still caught. Off by default, enforced on every path including SCRAM. A locked name gets the ordinary invalid-credentials reply, and that refusal is kept out of the per-IP auto-ban.
• POP3 AUTH-RESP-CODE (RFC 3206): credential failures carry [AUTH], a failed inbox load carries [SYS/TEMP]. A transient database problem made scheduled clients nag for a password that was never wrong.

Anti-virus

A scan that could not run was delivered with one line in the error log, indistinguishable from a clean scan. AVFailAction 0 (the default) keeps today's behaviour. 1 holds the message, re-attempts it and returns it to the sender rather than delivering it unscanned.

IMAP

BINARY (RFC 3516) decodes a part's Content-Transfer-Encoding server-side, and APPEND accepts the literal8 (~{n}) form. OBJECTID (RFC 8474): EMAILID follows a message through copies, MAILBOXID survives RENAME, THREADID is answered NIL.

Fixes

/Test no longer terminates on an unhandled exception when the machine has no network or a third party's DNS breaks. An idle server stops in about half a second rather than up to two. Nine settings reachable only by editing the ini now have Control Panel fields.

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