1LMTPD(8) Cyrus IMAP LMTPD(8)
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6 lmtpd - Cyrus IMAP documentation
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8 LMTP server process
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11 lmtpd [ -C config-file ] [ -U uses ] [ -T timeout ] [ -D ] [ -a ]
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14 lmtpd is an LMTP server used to deliver mail to the IMAP mailstore. It
15 accepts commands on its standard input and responds on its standard
16 output. It MUST be invoked by master(8) with those descriptors attached
17 to a remote client connection.
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19 lmtpd reads its configuration options out of the imapd.conf(5) file un‐
20 less specified otherwise by -C.
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23 -C config-file
24 Use the specified configuration file config-file rather than the
25 default imapd.conf(5).
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27 -U uses
28 The maximum number of times that the process should be used for
29 new connections before shutting down. The default is 250.
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31 -T timeout
32 The number of seconds that the process will wait for a new con‐
33 nection before shutting down. Note that a value of 0 (zero)
34 will disable the timeout. The default is 60.
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36 -D Run external debugger specified in debug_command.
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38 -a Preauthorize connections initiated on an internet socket, in‐
39 stead of requiring LMTP AUTH. This should only be used for con‐
40 nections coming from trusted hosts.
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43 lmtpd is commonly included in the SERVICES section of cyrus.conf(5)
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46 SERVICES {
47 imap cmd="imapd -U 30" listen="imap" prefork=0
48 imaps cmd="imapd -s -U 30" listen="imaps" prefork=0 maxchild=100
49 lmtpunix cmd="lmtpd" listen="/var/run/cyrus/socket/lmtp" prefork=0 maxchild=20
50 sieve cmd="timsieved" listen="sieve" prefork=0
51 notify cmd="notifyd" listen="/var/run/cyrus/socket/notify" proto="udp" prefork=1
52 httpd cmd="httpd" listen=8080 prefork=1 maxchild=20
53 }
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56 /etc/imapd.conf
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59 imapd.conf(5), master(8)
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62 The Cyrus Team, Nic Bernstein (Onlight)
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65 1993–2022, The Cyrus Team
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703.6.0 December 12, 2022 LMTPD(8)