Exim FAQ: Keyword-in-context index

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Q0023:  Why is Exim refusing to relay, saying failed to find host name from IP address when I have the sender's IP address in an ACL condition?...
Q0083:  Netscape on Unix is sending messages containing an unqualified user name in the Sender: header line, which Exim is rejecting because I have set verify...
Q0416:  ... non-existing user would bounce back with a different message, based on the name of non-existing user?
Q0425:  ... distributed between several servers according to the first letter of the user name. All the servers receive incoming mail at random. I would like to have...
Q0726:  My SMTP authentication can be bypassed by sending an unknown user name and an empty password. What is wrong with this condition in a PLAIN authenticator?...
Q0804:  ... into ``friendly'' names, but if mail comes in for an upper case login name, it doesn't get rewritten.
Q5028:  When I HUP the Exim daemon, the name shown in the process table changes from /usr/lib/sendmail (which is a...
Q0034:  ... another identical host, it stopped working (it could not resolve DNS names).
Q0414:  ... handle my local domain because my users have upper case letters in their login names, but incoming mail now has to use the correct case. Can I relax this somehow?...
Q0804:  I'm using this rewriting rule to change login names into ``friendly'' names, but if mail comes in for an upper case login...
Q1703:  ... have some legacy clients that don't use STARTTLS, but which expect to negotiate a TLS session automatically on connection to the ssmtp port (465). Can...
Q0717:  When using Nessus on a system that runs Exim, a number of security issues are raised. Nessus...
Q0083:   Netscape on Unix is sending messages containing an unqualified user name in the Sender:...
Q0607:  When I activate ``return receipt'' for example in Netscape Mailbox sending options, then I get an error message from Exim... something like...
Q0037:  ... experiencing mailbox locking problems with Sun's mailtool used over a network.
Q0305:  How can I arrange for mail on my local network to be delivered directly to the relevant hosts, but all other mail to...
Q1401:  ... to the Internet, how can I arrange for mail to other hosts on my local network to be delivered, while at the same time mail to Internet hosts is queued...
Q9704:  ... experiencing mailbox locking problems with Sun's mailtool used over a network.
Q0511:  ... send a message, I get the error User 0 set for address_reply transport is on the never_users list. What does this mean?
Q0079:  Our new PIX firewall is causing problems with incoming mail. How can this be fixed?...
Q0104:  I'm about to upgrade to a new Exim release. Do I need to ensure the spool is empty, or take any other...
Q1404:  ... and use -qf to force delivery of waiting mail when I dial in. How can I arrange for any new messages that arrive while I'm connected to be delivered immediately?...
Q9811:  ... proportion of real mail traffic from my live mail server to use in tests of a new server. I want to preserve the envelope contents, but to suppress any...
Q0203:  ... qualification of non-fully-qualified domains, and then pass them on to the next router?
Q0610:  How can I force the next retry time for a host to be now?
Q0619:  I can't get Exim to deliver over NFS. I get the error fcntl() failed: No locks available, though the lock daemon...
Q9202:  A script that FreeBSD runs nightly uses mailq with the -Ac parameter. Why doesn't Exim recognize this?
Q0407:  ... arrange for a default value when using a query-style lookup such as LDAP or NIS+ to handle aliases?
Q0410:  How can I make Exim look in the alias NIS map instead of /etc/aliases?
Q0432:  I use NIS for my user data. How can I stop Exim rejecting mail when my NIS servers...
Q0204:  Every system has a nobody account under which httpd etc run. I would like to know how to restrict...
Q5027:  Is there any way I can send bounces to the postmaster, and nobody else? Basically, I want to receive them, and I don't want the reply/from...
Q0005:  Why is Exim not rejecting incoming messages addressed to non-existent users at SMTP time?
Q0302:  Why does Exim say all relevant MX records point to non-existent hosts when MX records point to IP addresses?
Q0416:  What is quickest way to set up Exim so any message sent to a non-existing user would bounce back with a different message, based on the name of...
Q0203:  How can I arrange to do my own qualification of non-fully-qualified domains, and then pass them on to the next router?
Q0207:  Why does Exim lower-case the local-part of a non-local domain when routing?
Q0304:  How do I configure Exim to send all non-local mail to a gateway host?
Q0306:  How do I configure Exim to send all non-local mail to a central server if it cannot be immediately delivered by my host?...
Q0503:  I received a message with a Subject: line that contained a non-printing character (a carriage return). This messed up my filter file. Is there...
Q5029:  A message with a recipient address that contains a non-printing character is stuck on my mail queue. How can I remove this address?
Q0072:  Exim will deliver to normal aliases, and aliases that are pipes or files, but it objects to aliases that involve...
Q0305:  ... ISP's mail server? The local hosts are all DNS-registered and behave like normal Internet hosts.
Q0063:  When I try to start an Exim daemon, nothing happens. There is no process, and nothing is written to the Exim log....
Q0428:  I've converted from Sendmail, and I notice that Exim doesn't make use of the owner- entries in my alias file to change...
Q5004:  I've recently noticed that emails I send with a Bcc: line are being delivered to their final destination...
Q5015:  I just noticed log entries that start off <= <>. Am I correct in assuming that the <>...
Q5012:  Does Exim support Delivery Status Notification (DSN), Message Status Notification (MSN), or any other form of delivery...
Q9811:  ... server. I want to preserve the envelope contents, but to suppress any error notifications to the original sender.
Q5002:  ... want to ``tail'', and the number of tailing windows is getting to be a nuisance.
Q0422:  ... group of domains *.example.com to share the same alias file? I have a number of such groups.
Q0614:  ... in one go. Exim spawns a lot of kids, but is there some limit to the number of processes it creates?
Q0717:  When using Nessus on a system that runs Exim, a number of security issues are raised. Nessus complains that Exim answers to EXPN...
Q5002:  I want to ``tail'' the Exim log, but I have a number of other logs I also want to ``tail'', and the number of tailing windows...
Q0301:  What do lowest numbered MX record points to local host and remote host address is the local host...

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