13. DKIM support for multiple signing, by domain and/or key-selector.
DKIM support for multiple hashes, and for alternate-identity tags.
Builtin macro with default list of signed headers.
13. DKIM support for multiple signing, by domain and/or key-selector.
DKIM support for multiple hashes, and for alternate-identity tags.
Builtin macro with default list of signed headers.
15. TCP Fast Open used, with data-on-SYN, for client SMTP via SOCKS5 proxy,
for ${readsocket } expansions, and for ClamAV.
15. TCP Fast Open used, with data-on-SYN, for client SMTP via SOCKS5 proxy,
for ${readsocket } expansions, and for ClamAV.