-required configuration about their reachability, allowance of file or
-freq transmissions.
-@item Use @ref{nncp-file}, @ref{nncp-freq}, @ref{nncp-mail}
-(@ref{Postfix, look how} Postfix SMTP server could be configured for its
-usage) commands to queue file, freq and mail transmissions. Repeat as
-many times any time as you wish.
+required configuration about their reachability, permissions of file or
+freq transmission.
+@item Use @ref{nncp-file}, @ref{nncp-freq}, @ref{nncp-exec}
+(look @ref{Postfix, how} Postfix and @ref{Exim, how} Exim SMTP servers
+could be configured) commands to queue file, freq and exec
+transmissions. Repeat as many times any time as you wish.