Syntax: protocol imap | pop3 | smtp; Default:

Syntax: proxy_read_timeout time; Default: proxy_read_timeout 60s;

Syntax: underscores_in_headers on | off; Default: underscores_in_headers

Syntax: memcached_next_upstream error | timeout | invalid_response | not_found

Syntax: ssl_verify_client on | off | optional | optional_no_ca;

Syntax: ssl_verify_depth number; Default: ssl_verify_depth 1;

Syntax: mp4; Default: — Context: location

Syntax: dav_methods off | method ...; Default: dav_methods

Syntax: lingering_close off | on | always; Default:

Syntax: ssl_session_tickets on | off; Default: ssl_session_tickets