Syntax: pop3_capabilities extension ...; Default: pop3_capabilities

Syntax: proxy_ssl_certificate file; Default: — Context:

Syntax: proxy_pass URL; Default: — Context:

Syntax: gzip_proxied off | expired | no-cache | no-store | private

Syntax: proxy_ignore_headers field ...; Default: —

Syntax: proxy_ssl_verify on | off; Default: proxy_ssl_verify

Syntax: client_header_buffer_size size; Default: client_header_buffer_size

Syntax: underscores_in_headers on | off; Default: underscores_in_headers

Syntax: proxy_send_lowat size; Default: proxy_send_lowat 0;

Syntax: limit_conn zone number; Default: —