masqmail

annotate docs/simple-relay-setup @ 331:e507c854a63e

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Security fix! Correct handling of seteuid() return value See Debian bug #638002, reported by John Lightsey. When possible the (already available) set_euidgid() function is used. Additionally, it is unnecessary to change the identity when writing into an already open file descriptor. This should fix the problem.
author markus schnalke <meillo@marmaro.de>
date Sat, 27 Aug 2011 16:19:07 +0200
parents f10a56dc7481
children 08932c629849
rev   line source
meillo@186 1 Simple Setup
meillo@186 2 ============
meillo@186 3
meillo@186 4 You want
meillo@186 5 --------
meillo@186 6
meillo@186 7 - submit mail on stdin by calling masqmail on the commandline
meillo@186 8 - submit mail with SMTP from the local machine
meillo@186 9 - let masqmail deliver mail locally to the system mailboxes /var/mail/*
meillo@186 10 - let masqmail forward non-local mail through a smart host
meillo@186 11
meillo@186 12 This is like the simple-local-setup plus the forwarding.
meillo@186 13
meillo@186 14
meillo@186 15 Set up
meillo@186 16 ------
meillo@186 17
meillo@186 18 Follow the description in INSTALL.
meillo@186 19
meillo@186 20 A common configure call would be:
meillo@186 21
meillo@186 22 ./configure --enable-auth --enable-ident
meillo@186 23
meillo@186 24
meillo@186 25 Configuration
meillo@186 26 -------------
meillo@186 27
meillo@186 28 You need a config file like this one:
meillo@186 29
meillo@186 30 host_name = "foo.example.org"
meillo@186 31 online_routes.default = /etc/masqmail/default.route
meillo@186 32
meillo@186 33 (Substitute a real hostname, of course.)
meillo@186 34
meillo@186 35 Addionally you need to create the route config file like:
meillo@186 36
meillo@186 37 # where to relay to; the address and port of the smart host
meillo@186 38 mail_host = "mail.gmx.net:25"
meillo@223 39 # use a wrapper to enable encryption
meillo@223 40 # for STARTTLS on port 25:
meillo@223 41 #instant_helo=true
meillo@223 42 #wrapper="/usr/bin/openssl s_client -quiet -starttls smtp -connect mail.gmx.net:25 2>/dev/null"
meillo@223 43 # for SMTP over SSL on port 465:
meillo@223 44 #wrapper = "/usr/bin/openssl s_client -quiet -connect mail.gmx.net:465 2>/dev/null"
meillo@186 45
meillo@186 46 do_correct_helo = true
meillo@186 47
meillo@186 48 # rewrite the From addresses to ones visible from the outside
meillo@186 49 map_return_path_addresses = "meillo: schnalke4@gmx.de"
meillo@186 50 map_h_from_addresses = "meillo: markus schnalke <schnalke4@gmx.de>"
meillo@186 51
meillo@186 52 # it's good to use "login" only if the connection is encrypted
meillo@186 53 auth_name = "login"
meillo@186 54 #auth_name = "cram-md5"
meillo@186 55 auth_login = "UID_OR_EMAIL_ADDRESS"
meillo@186 56 auth_secret = "PASSWORD"
meillo@186 57
meillo@186 58
meillo@186 59
meillo@186 60 Starting the daemon
meillo@186 61 -------------------
meillo@186 62
meillo@186 63 Listening for SMTP connections on a port requires masqmail to run as
meillo@186 64 daemon. You probably want to start masqmail as daemon each time the
meillo@186 65 system comes up. How you have to do that is system dependent.
meillo@186 66 /etc/rc.local is a good try to add the daemon call, because this file
meillo@186 67 seems to be frequently available.
meillo@186 68
meillo@186 69 /usr/local/sbin/masqmail -bd -q10m
meillo@186 70
meillo@186 71 This starts masqmail in daemon mode and does a queue run every ten
meillo@186 72 minutes.
meillo@186 73
meillo@186 74
meillo@186 75 Check the setup
meillo@186 76 ---------------
meillo@186 77
meillo@186 78 Like in simple-local-setup plus ...
meillo@186 79
meillo@186 80 Send a mail to a remote location:
meillo@186 81
meillo@186 82 $ echo "some text" | mail foo@somewhereelse.example.org
meillo@186 83
meillo@186 84 Check if it is queued:
meillo@186 85
meillo@186 86 $ masqmail -bp
meillo@186 87
meillo@186 88 Deliver it with:
meillo@186 89
meillo@186 90 $ masqmail -qo default
meillo@186 91
meillo@186 92 Check the queue contents again.
meillo@186 93
meillo@186 94 You need to do such queue runs for online routes explicitely. For
meillo@186 95 instance by cron.
meillo@186 96
meillo@186 97
meillo@186 98 Automatic queue runs
meillo@186 99 --------------------
meillo@186 100
meillo@186 101 You can also tell masqmail to send queued mails through a route each
meillo@186 102 time the daemon does a queue run. Therefor you need to tell masqmail
meillo@186 103 that it is online and can use the default route to deliver mail.
meillo@186 104
meillo@186 105 Add this to masqmail.conf:
meillo@186 106
meillo@310 107 online_query = "/bin/echo default"
meillo@186 108
meillo@186 109 Now masqmail will send online mail automatically through the default
meillo@186 110 route, each time it does a queue run (every ten minutes).
meillo@186 111
meillo@186 112
meillo@186 113 In case of problems
meillo@186 114 -------------------
meillo@186 115
meillo@186 116 Have a look at the log file: /var/log/masqmail/masqmail.log
meillo@186 117
meillo@186 118 Set the debug level in masqmail.conf, restart the daemon, redo the
meillo@186 119 test, and look at the debug file: /var/log/masqmail/debug.log
meillo@186 120
meillo@186 121 If you use a wrapper, test it manually and interactively on the
meillo@186 122 command line.
meillo@186 123
meillo@186 124 Ask on the mailing list: <masqmail@marmaro.de>
meillo@186 125
meillo@186 126
meillo@186 127
meillo@186 128 meillo