Exim FAQ: Keyword-in-context index

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Q5007:  When I send a message using the -t command line option, Exim sends only to the addresses within the message,...
Q5028:  When I HUP the Exim daemon, the name shown in the process table changes from /usr/lib/sendmail (which is a symlink) to the real binary...
Q5002:  ... a number of other logs I also want to “tail”, and the number of tailing windows is getting to be a nuisance.
Q0705:  How can I use tcpwrappers in conjunction with Exim?
Q0321:  How can I tell an Exim router to use only IPv4 or only IPv6 addresses when it finds both...
Q0733:  Is there any way to tell Exim not to lookup the IP address against any DNS black list if the connection...
Q0736:  Is it possible to tell exim to drop the connection after a server attempts to send a message...
Q0737:  Is there some way to tell Exim not to consider 127.0.0.1 as a valid MX?
Q9804:  We want to be able to temporarily lock out a user by disabling the password and moving the home directory...
Q0712:  ... check if a user has exceeded their email quota. If they have I issue a temporary failure and a message - can I do this with Exim?
Q1403:  How should Exim be configured when it is acting as a temporary storage system for a domain on a dial-up host?
Q9603:  ... seeing the message inetd[334]: imap/tcp server failing (looping), service terminated on a RedHat 5.2 system, causing imap connections to be refused. The imapd...
Q0606:  ... turned on the use_crlf option on the pipe transport (tmail prefers \r\n terminations) message bodies started to vanish.
Q0051:  When I try exim -bf to test a system filter, I received the following error message: Filter error: unavailable...
Q0413:  ... delivery of all messages to that user, which sometimes include the user's own test messages. Can it be told to ignore the .forward file and/or inform the...
Q0501:  My filter isn't working. How can I test it?
Q0703:  How can I test that my spam blocks are working?
Q0704:  How can I test that Exim is correctly configured to use the Realtime Blackhole List (RBL)?...
Q0725:  ... up some specific rejection messages for certain recipients, but when I test them, the SMTP message is always 550 5.1.1 <user@mydomain.com>... User...
Q9605:  ... installed debian 2.2 linux on a small 325mb 486 laptop. When I try to test the Mail program, I get the following error: Failed to open configuration...
Q0084:  ... and then pipes the result to mailx to resubmit the message, but when I use my tested command in an alias file, I get an error from gpg.
Q9811:  ... off” a 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...
Q0905:  ... system filter to replace certain headers in messages, but how can I add text to existing headers? I want to add [SPAM] to the subject line of messages...
Q0711:  ... email - e.g. ignore large MIME attachments for example and only process text/plain?
Q0628:  I have the default retry rule, which I thought meant that Exim should keep trying for four days, but it seems to be bouncing...
Q9808:  I have a mailing list exploder on one host, and three other hosts where I want to do the actual deliveries from. How can I get...
Q0614:  ... always hundreds of e-mails waiting for me. These are forced down Exim's throat in one go. Exim spawns a lot of kids, but is there some limit to the number...
Q0412:  ... seeing the error bad mode (100664) for /home/test/.forward? I've looked through the documentation but can't see anything to suggest that Exim has to do anything...
Q0603:  How can mails that are being routed through routers that do not set check_local_user be delivered under the uid of...
Q0713:  I'd like to pass all messages through a virus-scanning system before delivery. Can Exim do this?
Q0731:  Is there any defence I can use against spam sent through an open proxy?
Q1408:  ... email has been deferred to a member on a local mailing list (implemented through forward files), and one of our ETRN clients is on this mailing list, the -R...
Q0005:  ... not rejecting incoming messages addressed to non-existent users at SMTP time?
Q0020:  Why do connections to my machine's SMTP port take a long time to respond with the banner, when connections to other ports respond instantly?...
Q0046:  A short time after I start Exim I see a defunct zombie process. What is causing this?...
Q0082:  ... __libc_res_nquery, version GLIBC_PRIVATE not defined in file libresolv.so.2 with link time reference mean?
Q0319:  ... some mails on my queues that are sticking around longer than the retry time indicates they should. They are all getting frozen because some remote...
Q0608:  What does the message retry time not reached [for any host] on the log mean? Why won't Exim try to deliver...
Q0610:  How can I force the next retry time for a host to be now?
Q0613:  ... my smtp transport, but after the error sem@chat.ru cannot be resolved at this time Exim isn't using them.
Q0615:  ... behaviour? I only want to remove messages that have exceeded the maximum retry time.
Q0617:  ... specify longer times after a while, because it is writing a log entry every time, like this:
Q0620:  ... bounce messages without even attempting delivery, giving the error retry time not reached for any host after a long failure period?
Q0625:  I wish to have large emails go out one at a time.
Q0712:  I've hacked sendmail to make an ioctl call at the time of the SMTP RCPT command, to check if a user has exceeded their email...
Q1401:  ... to other hosts on my local network to be delivered, while at the same time mail to Internet hosts is queued without any delivery attempts?
Q1402:  ... with an address anything@aol.com is returned within about 15 minutes saying retry time exceeded, and all addresses are affected.
Q5018:  ... reads, can I rebuild them on the fly, or do I need to restart Exim every time I make a change?
Q5025:  What precautions should I take when editing Exim's run time configuration file?
Q9604:  ... files error especially when a lot of messages land for Majordomo at the same time.
Q9803:  A site for which I provide secondary MX is down for some time. Is there a way to run the queue for that destination separately from...
Q0017:  ... the error Remote end closed connection after data or Broken pipe or a timeout. What's going on?
Q0069:  What does the error SMTP data timeout (message abandoned) on connection from... mean?
Q0070:  What does the error SMTP command timeout on connection from... mean?
Q0615:  When a message in the queue got to 12h old, Exim wrote retry timeout exceeded and removed all messages in the queue to this host - even recent...
Q0068:  Exim times out when trying to connect to some hosts, though those hosts are known...
Q0088:  ... sometimes hangs while trying to send a message to Exim 4, and eventually times out. It worked flawlessly with Exim 3. What has changed?
Q0314:  ... sites are rejected with unknown mail domain. This only happens a few times a day and there is no particular pattern to the sites it rejects. If I...
Q0315:  ... route all mail with addresses that can't be resolved (the DNS lookup times out) to a relay machine.
Q0617:  ... deliver a message every 10 minutes, though the retry rules specify longer times after a while, because it is writing a log entry every time, like this:...
Q0014:  Exim is timing out after receiving and responding to the DATA command from one particular...
Q0059:  ... When my Outlook Express 6.0 client sends a STARTTLS command to begin a TLS session, Exim doesn't seem to receive it. The Outlook log shows this:...
Q1701:  ... server that uses a self-signed certificate to enable my clients to use TLS. However, clients other than Exim refuse to accept this certificate. What's...
Q1703:  ... legacy clients that don't use STARTTLS, but which expect to negotiate a TLS session automatically on connection to the ssmtp port (465). Can Exim...
Q1704:  ... When my Outlook Express 6.0 client sends a STARTTLS command to begin a TLS session, Exim doesn't seem to receive it.
Q1707:  I am trying to use TLS with Evolution as a client, and keep seeing this error: SMTP protocol violation:...
Q1708:  I trying to use TLS with Outlook as a client on a box that is running Norton Antivirus, but all my...
Q1705:  I have listed some hosts in tls_try_verify_hosts, but when they connect, no data appears in $tls_peerdn.
Q1706:  I have listed some hosts in tls_verify_hosts and provided them with certificates, but their connections are always...
Q0606:  I'm using tmail to do local deliveries, but when I turned on the use_crlf option on the pipe transport...
Q5019:  ... opposite of -bpa, that is, a listing of those addresses generated from a top-level address that have not yet been delivered.
Q9801:  How do I configure Exim as part of TPC (http://www.tpc.int)?
Q0042:  ... bounce messages from Exim, complaining that they have no sender. The SMTP trace does indeed show that the sender address is <>. Why is the Sender...
Q9811:  I would like to “tap off” a proportion of real mail traffic from my live mail server to use in tests of a new server. I want to preserve...
Q0003:  What does the error Child process of address_pipe transport returned 69 from command xxx mean?
Q0013:  What does the error message transport system_aliases: cannot find transport driver "redirect" in line 92 mean?...
Q0022:  What does No transport set by system filter in a log line mean?
Q0065:  ... error about being unable to create a spool file when trying to run an autoreply transport. Why is this?
Q0091:  ... Why is Exim giving the error Failed to send message from address_reply transport when I run it using -C to specify an alternate configuration?
Q0511:  ... mail command to send a message, I get the error User 0 set for address_reply transport is on the never_users list. What does this mean?
Q0601:  What does the error Neither the xxx router nor the yyy transport set a uid for local delivery of... mean?
Q0606:  ... local deliveries, but when I turned on the use_crlf option on the pipe transport (tmail prefers \r\n terminations) message bodies started to vanish.
Q0612:  Why does the pipe transport add a line starting with >From to messages?
Q0613:  I have set fallback_hosts on my smtp transport, but after the error sem@chat.ru cannot be resolved at this time Exim...
Q0622:  Can I write an ordinary file when I run a perl script as a transport filter for the remote_smtp and address_pipe transports?
Q0632:  What does the error User 1 set for local_mbx_delivery transport is on the never_users list mean?
Q0633:  Why is $domain not set in the smtp transport?
Q0634:  How can I stop a local transport from trying to access the user's home directory, even when the delivery...
Q0727:  ... SpamAssassin from being called for each of them? I'm running it from a pipe transport.
Q0041:  ... message unable to set gid=ddd or uid=ddd (euid=ddd): local delivery to ... transport=ttt mean?
Q0622:  ... perl script as a transport filter for the remote_smtp and address_pipe transports?
Q0308:  ... some local parts must be delivered locally, but the remainder are to be treated like any other remote addresses.
Q0629:  I'm having trouble with quotas and Courier, because Exim is not handling maildirsize files....
Q9606:  I'm having trouble configuring Exim 4 on a Debian system. How does /etc/exim4/conf.d work?...
Q0606:  I'm using tmail to do local deliveries, but when I turned on the use_crlf option on the pipe transport (tmail prefers \r\n terminations)...
Q0609:  Exim seems to be sending the same message twice, according to the log, although there is a difference in capitalization...
Q0045:  I see entries in the log that mention two different IP addresses for the same connection. Why is this? For example:...
Q0076:  ... but whenever a message is rejected, I get one message on the reject log and two messages on the main log.
Q0424:  How can I disable Exim's de-duplication features? I want it to do two deliveries if two different aliases expand to the same address.
Q0427:  How can I have an address looked up in two different alias files, and delivered to all the addresses that are found?...
Q0514:  When I try to send to two addresses I get an error in the filter file malformed address: , e@fgh.com...
Q0623:  ... /var/spool/mail has grown drastically. Is there any possibility of using two directories?
Q0707:  I have one or two cases where my host correctly rejects messages, but the remote host is...
Q5030:  I am using exim in a two queues scenario, with two different configuration files. How can I run a second...
Q9809:  ... that my gateway host sends a copy of each incoming message to each of two internal hosts?
Q0106:  Exim doesn't seem to be recognizing my operating system type correctly, and so is failing to build.
Q0321:  ... Exim router to use only IPv4 or only IPv6 addresses when it finds both types in the DNS?

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