master
Mail: parsing of the PROXY protocol from clients.
Mail: connections with wrong ALPN protocols are now rejected.
Mail: Auth-SSL-Protocol and Auth-SSL-Cipher headers (ticket #2134).
Overhauled some diagnostic messages akin to 1b05b9bbcebf.
SSL: removed the "ssl" directive.
Mail: IMAP pipelining support.
Copyright updated.
Mail: POP3 pipelining support.
Mail: fixed handling of blocked client read events in proxy.
Mail: realip module.
Mail: added missing event handling after reading data.