JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
rather than the verbs used.
+JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
+ from 255 to 1024 chars.
+
+JH/24 Verification callouts now attempt to use TLS by default.
+
+HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
+ are generic router options now. The defaults didn't change.
+
+JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
+ Original patch from Alexander Shikoff, worked over by JH.
+
+HS/02 Bug 1575: exigrep falls back to autodetection of compressed
+ files if ZCAT_COMMAND is not executable.
+
+JH/26 Bug 1539: Add timout/retry options on dnsdb lookups.
+
+JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
+
+JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
+ Normally benign, it bites when the pair was led to by a CNAME;
+ modern usage is to not canoicalize the domain to a CNAME target
+ (and we were inconsistent anyway for A-only vs AAAA+A).
Exim version 4.85