+Alias files are looked up in multiple locations: if the pathname is
+absolute or starts with
+.RI \*(lq . \*(rq
+or
+.RI \*(lq .. \*(rq
+then it's accessed directly; otherwise tilde expansion is done on
+usernames, then files are searched for in the user's
+.I Mail
+directory as specified in their profile. If not found there, the directory
+.RI \*(lq %nmhetcdir% \*(rq
+is checked.
+.PP