diff options
Diffstat (limited to 'fetchmail.man')
| -rw-r--r-- | fetchmail.man | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/fetchmail.man b/fetchmail.man index ce8581d7..1e304f01 100644 --- a/fetchmail.man +++ b/fetchmail.man @@ -357,6 +357,36 @@ special case, `envelope "Received"' enables parsing of sendmail-style Received lines. This is the default, and it should not be necessary unless you have globally disabled Received parsing with `no envelope' in the \fI.fetchmailrc\fR file. +.TP +.B -Q, --qvirtual +(Keyword: qvirtual) +The string assigned to this option will be removed from the user +name found in the header specified with the \fIenvelope\fR option. +This option is useful if you are using +.I fetchmail +to collect the mail for an entire domain and your ISP (or your mail +redirection provider) is using qmail. +One of the basic features of qmail is the +.sp +\&`Delivered-To:' +.sp +message header. Whenever qmail delivers a message to a local mailbox +it puts the username and hostname of the envelope recipient on this +line. The major reason for this is to prevent mail loops. To set up +qmail to batch mail for a disconnected site the ISP-mailhost will have +normally put that site in its `Virtualhosts' control file so it will +add a prefix to all mail addresses for this site. This results in mail +sent to 'username@userhost.userdom.dom.com' having a +\&`Delivered-To:' line of the form: +.sp +Delivered-To: mbox-userstr-username@userhost.userdom.dom.com +.sp +The ISP can make the 'mbox-userstr-' prefix anything they choose +but a string matching the user host name is likely. +By using the option `envelope Delivered-To:' you can make fetchmail reliably +identify the original envelope recipient, but you have to strip the +`mbox-userstr-' prefix to deliver to the correct user. +This is what this option is for. .SH USER AUTHENTICATION Every mode except ETRN requires authentication of the client. @@ -729,6 +759,9 @@ T} no envelope \& T{ Disable looking for envelope address T} +qvirtual -Q T{ +Qmail virtual domain prefix to remove from user name +T} aka \& T{ Specify alternate DNS names of mailserver T} @@ -1168,8 +1201,13 @@ recipients (including blind-copy recopients) to all receivers of the messages; it is therefore regarded by some administrators as a security/privacy problem. .PP +A slight variation of the `X-Envelope-To' header is the `Delivered-To' put +by qmail to avoid mail loops. It will probably prefix the user name with a +string that normally matches the user's domain. To remove this prefix you +can use the -Q or `qvirtual' option. +.PP Sometimes, unfortunately, neither of these methods works. When they -both fail, fetchmail must fall back on the contents of To/Cc/Bcc +all fail, fetchmail must fall back on the contents of To/Cc/Bcc headers to try to determine recipient addressees -- and these are not reliable. In particular, mailing-list software often ships mail with only the list broadcast address in the To header. |