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authorEric S. Raymond <esr@thyrsus.com>1997-02-11 18:59:28 +0000
committerEric S. Raymond <esr@thyrsus.com>1997-02-11 18:59:28 +0000
commita1f75d02f710aa6ff7fdaeee7aa48c76744554d0 (patch)
tree5272abbbcfa772ac7c8870eb6ed981321ca4a11b /fetchmail.man
parent6a29b0a26a977979e2fdc53fc3419447827fe61c (diff)
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Document ETRN better.
svn path=/trunk/; revision=866
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-rw-r--r--fetchmail.man11
1 files changed, 9 insertions, 2 deletions
diff --git a/fetchmail.man b/fetchmail.man
index 64892b26..cfd429dc 100644
--- a/fetchmail.man
+++ b/fetchmail.man
@@ -131,8 +131,6 @@ any successful attempt.
.I proto
may be one of the following:
.RS
-.IP IMAP
-IMAP2bis, a compatible subset of IMAP4.
.IP POP2
Post Office Protocol 2
.IP POP3
@@ -143,9 +141,18 @@ Use POP3 with MD5 authentication.
Use POP3 with RPOP authentication.
.IP KPOP
Use POP3 with Kerberos authentication on port 1109.
+.IP IMAP
+IMAP2bis, IMAP4, or IMAP4rev1 (\fIfetchmail\fR autodetects their capabilities).
.IP ETRN
Use the ESMTP ETRN option.
.RE
+All these alternatives work in basically the same way (communicating
+with server daemons to fetch mail already delivered to a mailbox on
+the server) except ETRN. The ETRN mode allows you to ask an RFC-1985
+complient ESMTP server (such as BSD sendmail at release 8.8.0 or
+higher) to immediately open an sender-SMTP connection to your your
+client machine and begin forwarding any items addressed to your client
+machine in the server's queue of undelivered mail.
.TP
.B \-P, --port
The option permits you to specify a TCP/IP port to connect on.