+----------------------------------------------------------------------
+ * There are four UUCP mailers listed in the configuration files.
+ Which one should I use?
+
+ The choice is partly a matter of local preferences and what is
+ running at the other end of your UUCP connection. Unlike good
+ protocols that define what will go over the wire, UUCP uses
+ the policy that you should do what is right for the other end;
+ if they change, you have to change. This makes it hard to
+ do the right thing, and discourages people from updating their
+ software. In general, if you can avoid UUCP, please do.
+
+ If you can't avoid it, you'll have to find the version that is
+ closest to what the other end accepts. Following is a summary
+ of the UUCP mailers available.
+
+ uucp-old (obsolete name: "uucp")
+ This is the oldest, the worst (but the closest to UUCP) way of
+ sending messages accros UUCP connections. It does bangify
+ everything and prepends $U (your UUCP name) to the sender's
+ address (which can already be a bang path itself). It can
+ only send to one address at a time, so it spends a lot of
+ time copying duplicates of messages. Avoid this if at all
+ possible.
+
+ uucp-new (obsolete name: "suucp")
+ The same as above, except that it assumes that in one rmail
+ command you can specify several recipients. It still has a
+ lot of other problems.
+
+ uucp-dom
+ This UUCP mailer keeps everything as domain addresses.
+ Basically, it uses the SMTP mailer rewriting rules.
+
+ Unfortunately, a lot of UUCP mailer transport agents require
+ bangified addresses in the envelope, although you can use
+ domain-based addresses in the message header. (The envelope
+ shows up as the From_ line on UNIX mail.) So....
+
+ uucp-uudom
+ This is a cross between uucp-new (for the envelope addresses)
+ and uucp-dom (for the header addresses). It bangifies the
+ envelope sender (From_ line in messages) without adding the
+ local hostname, unless there is no host name on the address
+ at all (e.g., "wolf") or the host component is a UUCP host name
+ instead of a domain name ("somehost!wolf" instead of
+ "some.dom.ain!wolf").
+
+ Examples:
+
+ We are on host grasp.insa-lyon.fr (UUCP host name "grasp"). The
+ following summarizes the sender rewriting for various mailers.
+
+ Mailer sender rewriting in the envelope
+ ------ ------ -------------------------
+ uucp-{old,new} wolf grasp!wolf
+ uucp-dom wolf wolf@grasp.insa-lyon.fr
+ uucp-uudom wolf grasp.insa-lyon.fr!wolf
+
+ uucp-{old,new} wolf@fr.net grasp!fr.net!wolf
+ uucp-dom wolf@fr.net wolf@fr.net
+ uucp-uudom wolf@fr.net fr.net!wolf
+
+ uucp-{old,new} somehost!wolf grasp!somehost!wolf
+ uucp-dom somehost!wolf somehost!wolf@grasp.insa-lyon.fr
+ uucp-uudom somehost!wolf grasp.insa-lyon.fr!somehost!wolf
+----------------------------------------------------------------------
+ * I'm trying to to get my mail to go into queue only mode, and it
+ delivers the mail interactively anyway. (Or, I'm trying to use
+ the "don't deliver to expensive mailer" flag, and it doesn't
+ delivers the mail interactively anyway.) I can see it does it:
+ here's the output of "sendmail -v foo@somehost" (or Mail -v or
+ equivalent).
+
+ The -v flag to sendmail (which is implied by the -v flag to
+ Mail and other programs in that family) tells sendmail to
+ watch the transaction. Since you have explicitly asked to
+ see what's going on, it assumes that you do not want to to
+ auto-queue, and turns that feature off. Remove the -v flag
+ and use a "tail -f" of the log instead to see what's going on.
+
+ If you are trying to use the "don't deliver to expensive mailer"
+ flag (mailer flag "e"), be sure you also turn on global option
+ "c" -- otherwise it ignores the mailer flag.
+----------------------------------------------------------------------
+ * I'm getting "Local configuration error" messages, such as:
+
+ 553 relay.domain.net config error: mail loops back to myself
+ 554 <user@domain.net>... Local configuration error
+
+ How can I solve this problem?
+
+ You have asked mail to the domain (e.g., domain.net) to be
+ forwarded to a specific host (in this case, relay.domain.net)
+ by using an MX record, but the relay machine doesn't recognize
+ itself as domain.net. Add domain.net to /etc/sendmail.cw
+ (if you are using FEATURE(use_cw_file)) or add "Cw domain.net"
+ to your configuration file.
+----------------------------------------------------------------------
+ * I want to run Sendmail version 8 on my DEC system, but you don't
+ have MAIL11V3 support in sendmail. How do I handle this?
+
+ Get Paul Vixie's reimplementation of the mail11 protocol
+ from gatekeeper.dec.com in /pub/DEC/gwtools.