Better description of the Sender header in man page

[mmh] / man / spost.man8

diff --git a/man/spost.man8 b/man/spost.man8
index c4558be..4a704f8 100644 (file)
--- a/man/spost.man8
+++ b/man/spost.man8
@@ -39,7 +39,7 @@ and finally feeds the message to the MTA.
 will not normally be called directly by the user.
 .PP
 .B Spost
-searches the `To:', `Cc:', `Bcc:', `Dcc',
+searches the `To:', `Cc:', `Bcc:', `Dcc:',
 `Fcc:', and `Resent\-xxx:' header lines of the specified
 message for destination addresses,
 .PP
@@ -65,7 +65,7 @@ invokes
 .B send
 to send the Bcc message.)
 .PP
-If a `Dcc' field is encountered, the field will be removed
+If a `Dcc:' field is encountered, the field will be removed
 before sending the message. The Dcc recipient will receive the
 message as well, but without being mentioned in the recipient
 headers.
@@ -86,7 +86,7 @@ can be used to specify one or more files that spost
 should take aliases from.
 .PP
 Aliasing is done on any address field. Those are:
-`From:', `To:', `Cc:', `Bcc:' and `Dcc',
+`From:', `To:', `Cc:', `Bcc:' and `Dcc:',
 or the `Resent\-xxx:' versions of these fields.
 .PP
 The
@@ -96,15 +96,17 @@ For example, the `\-v' switch will be added to the
 .B sendmail
 invocation.
 .PP
-.B Spost
-puts the
+If you specify a `From:' line manually in the message draft,
+it will be used as provided.
+If there is no `From:' line in the draft,
+.B spost
+uses the
 .RI ` Default-From '
-profile entry in the `From:' line of the message.
-If `Default-From' is not set,
+profile entry, if set.
+Otherwise
 .B spost
-constructs the `From:' line of the
-message from the user's login name and the full name from the GECOS field
-of the passwd file.
+constructs the `From:' line from the user's login name
+and the full name from the GECOS field of the passwd file.
 An example is `From: Dan Harkless <dan>'.
 .PP
 If you set the
@@ -112,14 +114,15 @@ If you set the
 environment variable.
 Its value overrides the full name from the GECOS field.
 .PP
-If you specify a `From:'
-line manually in the message draft.
-It will be used as provided.
-A `Sender:' header with the user's
-.B real
-address will be added, if the `From' line don't contain a address
-from the user
+A `Sender:' header will be added in two cases.
+First, if the `From:' line given in the draft contains one or
+more addresses, of which none is the user's own one, as defined by
 .RI ` Alternate-Mailboxes '.
+(The sender address will then be determined equally as described
+above for the absent `From:' header.)
+Second, if the `From:' line contains multiple addresses, of
+which at least one is the user's own address. The first own
+address will be used as the sender address.
 .PP
 Note that this applies equally to `Resent\-From:' lines
 in messages sent with