+.br
+- \fBwl\fP Wanderlust address book
+.br
+- \fBbsdcal\fP BSD calendar
+.br
+- \fBcustom\fP Custom output format, see below
+.TP
+\fB\-\-outformatstr\fP \fI<string>\fR
+Only used if \fB\-\-mutt\-query\fP \fIor\fR \fB\-\-convert\fP is specified \fIand\fR \fB\-\-outformat\fP=\fIcustom\fR. \fI<string>\fR is a format string allowing placeholders.
+.br
+A placeholder can be any of the standard fields names (see \fBabookrc\fP(5)) and must be encapsulated by curly brackets.
+.br
+The default value is "{nick} ({name}): {mobile}"
+.br
+If \fI<string>\fR starts with \fI!\fR only entries whose all fields from \fI<string>\fR are non-NULL are included.