-\fB8h\fR, \fBtoday\fR, \fB24h\fR, \fBweek\fR, \fBmonth\fR, and
-\fByear\fR selects mails received during the last 8, 24, 24, 7 * 24
-hours, 31 * 24 hours, and 365 * 24 hours respectively.
+\fB1h\fR, \fB8h\fR, \fB24h\fR, \fB48h\fR, \fBweek\fR, \fB2weeks\fR,
+\fBmonth\fR, \fBtrimester\fR, and \fByear\fR select mails received
+during the last 1, 8, 24, 48, 7 * 24 hours, 14 * 24 hours, 31 * 24
+hours, 92 * 24 hours, and 365 * 24 hours respectively.