| paul@955 | 1 | = LMTP Delivery = |
| paul@955 | 2 | |
| paul@973 | 3 | When imip-agent is configured to use LMTP, it connects directly to |
| paul@973 | 4 | [[../../MailboxIntegration|mail storage solutions]]. By using LMTP from the |
| paul@973 | 5 | agent software, the issue of configuring the mail system to integrate with |
| paul@973 | 6 | such solutions is avoided, but then those solutions must expose their LMTP |
| paul@973 | 7 | interface appropriately. |
| paul@955 | 8 | |
| paul@976 | 9 | {{{#!graphviz |
| paul@976 | 10 | //format=svg |
| paul@976 | 11 | //transform=notugly |
| paul@976 | 12 | digraph lmtp { |
| paul@1006 | 13 | node [shape=box,fontsize="13.0",fontname="Helvetica",tooltip="LMTP delivery"]; |
| paul@976 | 14 | edge [tooltip="LMTP delivery"]; |
| paul@976 | 15 | rankdir=LR; |
| paul@976 | 16 | |
| paul@976 | 17 | mail [label="Incoming mail",shape=folder,style=filled,fillcolor=cyan]; |
| paul@976 | 18 | |
| paul@976 | 19 | subgraph { |
| paul@976 | 20 | rank=same; |
| paul@976 | 21 | personrouter [label="Person router"]; |
| paul@976 | 22 | recipients [label="Recipient database",shape=folder]; |
| paul@976 | 23 | } |
| paul@976 | 24 | |
| paul@976 | 25 | subgraph { |
| paul@976 | 26 | rank=same; |
| paul@976 | 27 | personhandler [label="Person handler",style=filled,fillcolor=gold]; |
| paul@976 | 28 | } |
| paul@976 | 29 | |
| paul@976 | 30 | mailbox [label="Mailboxes\n(Cyrus, Dovecot, ...)",tooltip="Mailboxes"]; |
| paul@976 | 31 | |
| paul@976 | 32 | mail -> personrouter -> personhandler -> mailbox; |
| paul@976 | 33 | |
| paul@976 | 34 | recipients -> personrouter; |
| paul@976 | 35 | } |
| paul@976 | 36 | }}} |
| paul@976 | 37 | |
| paul@973 | 38 | Although this topic is largely beyond the scope of this documentation, |
| paul@973 | 39 | systems such as Cyrus and Dovecot can be configured to provide a Unix domain |
| paul@973 | 40 | socket offering support for LMTP connections. |
| paul@955 | 41 | |
| paul@976 | 42 | == Cyrus == |
| paul@976 | 43 | |
| paul@976 | 44 | For Cyrus on Debian, the following bug report is pertinent: |
| paul@955 | 45 | |
| paul@955 | 46 | * https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=494746 |
| paul@955 | 47 | |
| paul@973 | 48 | A permanent change in permissions on the Cyrus LMTP socket may be required to |
| paul@973 | 49 | make delivery available to the `lmtp` group: |
| paul@955 | 50 | |
| paul@955 | 51 | {{{ |
| paul@955 | 52 | dpkg-statoverride --force --update --add cyrus lmtp 750 /var/run/cyrus/socket |
| paul@955 | 53 | }}} |
| paul@955 | 54 | |
| paul@955 | 55 | See the [[../../SystemUsers|system users]] documentation for a discussion of |
| paul@955 | 56 | users and groups. |
