Exim FAQ: Keyword-in-context index

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This Keyword-in-context index for the Exim FAQ is generated automatically from the FAQ source. Browsers may not display the data very prettily, but it is hoped that it may provide a useful aid for finding things in the FAQ.

Q5005:  ... printer ejects a blank sheet. Is this something to do with using “letter” rather than A4 paper?
Q0047:  ... a restart of the mail system, I see the message Mailer daemons: exim abandoned: unknown, malformed, or incomplete option -bz sendmail. What does this...
Q0069:  What does the error SMTP data timeout (message abandoned) on connection from... mean?
Q0107:  Exim fails to build, complaining about the absence of the killpg function.
Q9202:  A script that FreeBSD runs nightly uses mailq with the -Ac parameter. Why doesn't Exim recognize this?
Q0085:  ... because of the underscore in the host name, but is there a switch to allow Exim to accept mail from such hosts?
Q0433:  ... can I arrange for a single address to be processed by both redirect and accept?
Q0716:  ... to have a file listing the only sender addresses from which she will accept mail? I want to do this so my family members don't get any spam (or other...
Q0720:  I set accept hosts=192.168.122.96/32 in order to accept mail for relaying from my local...
Q1701:  ... enable my clients to use TLS. However, clients other than Exim refuse to accept this certificate. What's wrong?
Q5003:  How can I persuade Exim to accept ETRN commands without the leading # character?
Q9609:  Why do some servers refuse SMTP connections from my Linux box, but accept connections from hosts running other operating systems?
Q0405:  On a host that accepts mail for several domains, do I have to use fully qualified addresses in /etc/aliases...
Q0012:  ... unable to route to any remote domains. It doesn't seen to be able to access the DNS.
Q0619:  ... though the lock daemon is running on the NFS server and other hosts are able to access it.
Q0634:  How can I stop a local transport from trying to access the user's home directory, even when the delivery is to a file that is...
Q0730:  ... the same passwords for SMTP authentication as I use for Courier IMAP access to my server?
Q0425:  My users' mailboxes are distributed between several servers according to the first letter of the user name. All the servers receive incoming...
Q0609:  Exim seems to be sending the same message twice, according to the log, although there is a difference in capitalization of the local...
Q0204:  Every system has a nobody account under which httpd etc run. I would like to know how to restrict mail which...
Q0402:  ... arrange for all incoming email for *@some.domain to go into one pop3 mail account? The customer doesn't want to add a list of specific local parts to the...
Q5012:  ... (DSN), Message Status Notification (MSN), or any other form of delivery acknowledgement?
Q0016:  I've set verify = header_syntax in my ACL, but this causes Exim to complain about header lines like To: Work: Jim <jims@email>,...
Q0023:  ... find host name from IP address when I have the sender's IP address in an ACL condition? My configuration contains this ACL statement:
Q0035:  I set a hosts condition in an ACL to do a lookup in a file of IP addresses, but it doesn't work.
Q1403:  How should Exim be configured when it is acting as a temporary storage system for a domain on a dial-up host?
Q0104:  ... release. Do I need to ensure the spool is empty, or take any other special action?
Q0607:  When I activate “return receipt” for example in Netscape Mailbox sending options, then...
Q9808:  ... list exploder on one host, and three other hosts where I want to do the actual deliveries from. How can I get Exim to split a message into groups of...
Q0402:  ... *@some.domain to go into one pop3 mail account? The customer doesn't want to add a list of specific local parts to the system.
Q0612:  Why does the pipe transport add a line starting with >From to messages?
Q0616:  Can Exim add a Content-Length: header to messages it delivers?
Q0901:  I would like add some custom headers to selected outgoing mail based on a specific domain...
Q0902:  Is it possible to have Exim add a header to only certain local parts of outgoing mail?
Q0905:  ... a 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...
Q1601:  How can I add a disclaimer or an advertisement to a message?
Q9806:  How do I get exim not to add a Sender: header to locally originated mail?
Q1503:  ... mailmaster instead of the real sender, and a Sender: header is being added to the message.
Q0426:  ... for anything@onedomain to forward to anything@anotherdomain. I tried adding $local_part@anotherdomain to my aliases but it did not expand - it sent...
Q0003:  What does the error Child process of address_pipe transport returned 69 from command xxx mean?
Q0622:  ... when I run a perl script as a transport filter for the remote_smtp and address_pipe transports?
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:  ... uses a 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?
Q0319:  ... indicates they should. They are all getting frozen because some remote admin has set their MX record to 127.0.0.1.
Q5001:  ... arrange to allow a limited set of users to perform a limited set of Exim administration functions? I don't want to put them all in the exim group.
Q5032:  Are there any Exim web-based administration scripts?
Q1702:  How can I arrange for Exim to advertise support for SMTP authentication only when the session is encrypted?
Q1601:  How can I add a disclaimer or an advertisement to a message?
Q0008:  ... -d -bt user@domain all seems well, but when I send a message from my User Agent, it does not arrive at its destination.
Q0706:  How can I get POP-auth-before-relay ( aka POP-before-SMTP) support in Exim?
Q0026:  I'm trying to get Exim to connect an alias to a pipe, but it always gives error code 69, with the comment (could mean...
Q0084:  I want to set up an alias that pipes a message to gpg and then pipes the result to mailx to resubmit the...
Q0405:  ... use fully qualified addresses in /etc/aliases or do I have to set up an alias file for each domain?
Q0408:  If I don't fully qualify the addresses in a virtual domain's alias file then mail to aliases which also match the local domain get delivered...
Q0410:  How can I make Exim look in the alias NIS map instead of /etc/aliases?
Q0415:  Can I use my existing alias files and forward files as well as procmail and effectively drop in Exim...
Q0418:  I want to use a default entry in my alias file to handle unknown local parts, but it picks up the local parts that...
Q0422:  ... for all addresses in a group of domains *.example.com to share the same alias file? I have a number of such groups.
Q0427:  How can I have an address looked up in two different alias files, and delivered to all the addresses that are found?
Q0428:  ... Sendmail, and I notice that Exim doesn't make use of the owner- entries in my alias file to change the sender address in outgoing messages to a mailing list....
Q0434:  ... aliases to a single address? I tried using an asterisk in the system alias file with an lsearch* lookup, but that send all messages to the default...
Q0435:  My alias file contains fully qualified addresses as keys, and some wildcard domains...
Q0611:  ... up |/bin/grep Subject|/usr/bin/smbclient -M <netbiosname> as an alias but it doesn't work.
Q0724:  ... response to the remote user is “unknown user” instead of the message from the alias file. How can I change this?
Q0072:  Exim will deliver to normal aliases, and aliases that are pipes or files, but it objects to aliases that involve :include:...
Q0401:  ... need to have any mail for virt.dom.ain that doesn't match one of the aliases in /usr/lib/aliases.virt delivered to a particular address, for example, postmaster@virt.dom.ain....
Q0407:  ... value when using a query-style lookup such as LDAP or NIS+ to handle aliases?
Q0408:  ... fully qualify the addresses in a virtual domain's alias file then mail to aliases which also match the local domain get delivered to the local domain.
Q0418:  ... handle unknown local parts, but it picks up the local parts that the aliases generate. For example, if the alias file is
Q0424:  ... de-duplication features? I want it to do two deliveries if two different aliases expand to the same address.
Q0426:  ... forward to anything@anotherdomain. I tried adding $local_part@anotherdomain to my aliases but it did not expand - it sent it to that literal address.
Q0434:  How can I redirect all local parts that are not in my system aliases to a single address? I tried using an asterisk in the system alias file with an lsearch*...
Q0624:  ... program called smrsh that restricts what binaries can be run from sendmail aliases. Is there something like this in Exim ?
Q0724:  I have used :fail: in some aliases; when one of these addresses is refused, I see the message on the log, but...
Q9709:  When I try to compile Exim 4.x on Solaris 2.5.1 I get an error along the lines of no such field in struct as 'value.ui32'.
Q9708:  ... to use only the resolver (i.e. ignore /etc/hosts), but don't want to alter the nsswitch.conf file in Solaris 2.
Q0065:  When (as root) I use -C to run Exim with an alternate configuration file, it gives an error about being unable to create a spool file...
Q0091:  ... message from address_reply transport when I run it using -C to specify an alternate configuration?
Q5030:  ... files. How can I run a second copy of eximon to inspect and modify the alternate queue?
Q0317:  What I'd like to do is have alternative smart hosts, where the one to be used is determined by which ISP I'm connected...
Q1003:  We have a large password file. Can Exim use alternative lookups during delivery to speed things up?
Q0722:  I installed Amavis and it is working, but bounces are simply vanishing.
Q5014:  Although I haven't set check_spool_space, Exim is still checking the amount of space on the spool for incoming SMTP messages that use the SIZE option....
Q5023:  ... by default? Isn't this just a waste of resources? I've been told this is an ancient way of authentication. Is it obsolete?
Q0314:  I have a really annoying intermittent problem where attempts to mail to valid sites are rejected with...
Q0034:  Exim works fine on one host, but when I copied the binary to another identical host, it stopped working (it could not resolve DNS names).
Q0316:  I would like to forward all incoming email for a particular domain to another host via SMTP. Whereabouts would I configure that?
Q0506:  Using $recipients in a system filter gives me another problem: how can I do a string lookup if $recipients is a list of addresses?...
Q5033:  How can I send a copy of all outgoing messages to another mailbox?
Q9804:  ... out a user by disabling the password and moving the home directory to another place. How can we arrange to reject mail for users in this state?
Q0717:  ... Exim, a number of security issues are raised. Nessus complains that Exim answers to EXPN and/or VRFY; sometimes it even complains that Exim allows relaying....
Q0728:  How do I use Exiscan, SA-Exim, SpamAssassin, Clam Antivirus, Sophos SAVI, or sophie with Exim?
Q1708:  ... trying to use TLS with Outlook as a client on a box that is running Norton Antivirus, but all my email is being rejected with Unsupported command errors. Why?...
Q0056:  ... user sends an email it gets sent with the return path (envelope sender) apache@server_name.com because the PHP script is running as apache.
Q0031:  ... rejecting connections from hosts that have more than one IP address, for no apparent reason.
Q9705:  Exim has been crashing on my Solaris x86 system, apparently while running DBM functions.
Q0905:  ... existing headers? I want to add [SPAM] to the subject line of messages that appear to be spam.
Q0635:  The log message error ignored appears after some delivery failures. What does it mean?
Q1705:  ... listed some hosts in tls_try_verify_hosts, but when they connect, no data appears in $tls_peerdn.
Q0604:  I want to use MMDF-style mailboxes. How can I get Exim to append the ctrl-A characters that separate indvidual emails?
Q0406:  ... Some of my users are using the .forward to pipe to a shell command which appends to the user's INBOX. How can I forbid this?
Q0089:  What does the error kernel: application bug: exim(12099) has SIGCHLD set to SIG_IGN but calls wait() mean?
Q0709:  Does Exim apply RBL checks to error messages, those with an envelope sender of <>...
Q0018:  ... like: exim -v -R @aol.com? For other domains, I do this and I see the appropriate waiting for passed connections to get used messages.
Q0431:  How do I configure Exim to allow arbitrary extensions in local parts, of the form +extension?
Q0085:  I see a lot of rejected EHLO ... syntactically invalid argument(s). I know it's because of the underscore in the host name, but is there...
Q0043:  What does the error Unable to get interface configuration: 22 Invalid argument mean?
Q0055:  What does the error Failed to open wait-remote_smtp database: Invalid argument mean?
Q0071:  ... does the error failed to open DB file /var/spool/exim//db/retry: Illegal argument mean?
Q0319:  I have some mails on my queues that are sticking around longer than the retry time indicates they should. They are all getting...
Q0309:  How can I configure Exim on a firewall machine so that if mail arrives addressed to a domain whose MX points to the firewall, it is forwarded...
Q5015:  ... just noticed log entries that start off <= <>. Am I correct in assuming that the <> indicates that the envelope did not contain any “From”...
Q0434:  ... that are not in my system aliases to a single address? I tried using an asterisk in the system alias file with an lsearch* lookup, but that send all messages...
Q0057:  We've got people complaining about attachments that don't show up as attachments, but are included in the body of the...
Q0509:  How can I set up a filter file to detect and block virus attachments?
Q0711:  ... Exim only filter parts of an incoming email - e.g. ignore large MIME attachments for example and only process text/plain?
Q0715:  How can I get Exim to remove attachments from messages?
Q1602:  How can I remove attachments from messages?
Q5020:  How can I make Exim receive incoming mail, queue it, but not attempt to deliver it? I want to be in this state while moving some mailboxes....
Q0620:  Why does Exim bounce messages without even attempting delivery, giving the error retry time not reached for any host after a long...
Q0314:  I have a really annoying intermittent problem where attempts to mail to valid sites are rejected with unknown mail domain. This only...
Q0736:  Is it possible to tell exim to drop the connection after a server attempts to send a message to a number of unknown users?
Q1401:  ... at the same time mail to Internet hosts is queued without any delivery attempts?
Q0078:  ... unknown SMTP command XXXX from my client hosts, and they are unable to authenticate.
Q9203:  How can I use Exim for authenticated SMTP using Cyrus on FreeBSD?
Q0723:  I can't get Pine to work with PLAIN authentication; Exim keeps responding "535 Incorrect authentication data".
Q0726:  My SMTP authentication can be bypassed by sending an unknown user name and an empty password....
Q0730:  How can I use the same passwords for SMTP authentication as I use for Courier IMAP access to my server?
Q1702:  How can I arrange for Exim to advertise support for SMTP authentication only when the session is encrypted?
Q5023:  ... Isn't this just a waste of resources? I've been told this is an ancient way of authentication. Is it obsolete?
Q0726:  ... name and an empty password. What is wrong with this condition in a PLAIN authenticator?
Q0618:  I am trying to set exim up to have a automatic failover if it sees that the system that it is sending all mail to is...
Q0417:  What do I need to do to make Exim handle /usr/ucb/vacation processing automatically, so that people could just create a .vacation.msg file in their home directory...
Q1405:  I have an ISDN connection and would like a way of running the queue automatically when it is up.
Q1703:  ... that don't use STARTTLS, but which expect to negotiate a TLS session automatically on connection to the ssmtp port (465). Can Exim handle this?
Q0065:  ... gives an error about being unable to create a spool file when trying to run an autoreply transport. Why is this?
Q0508:  ... relative paths in users' filter files when the directories concerned are not available from the password data?
Q0619:  ... get Exim to deliver over NFS. I get the error fcntl() failed: No locks available, though the lock daemon is running on the NFS server and other hosts are...
Q5011:  Is there a version of Exim available that runs under Windows?
Q0313:  ... this means that bad addresses also get passed to the smart host. Can I avoid this?
Q0615:  ... removed all messages in the queue to this host - even recent messages. How I can avoid this behaviour? I only want to remove messages that have exceeded the...

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