Linux-Kurs Themen - Mail Services - June 14, 2009 Michel Bisson 74 Mail Services 74_Mail_Services.sxw - 1 Linux-Kurs Themen - Mail Services - June 14, 2009 Michel Bisson Table of Contents Mail-Grundlagen.........................................................................................................8 MTA - Mail Transfer Agent............................................................................................................. 8 MDA - Mail Delivery Agent oder LDA - Local Delivery Agent......................................................... 8 MUA - Mail User Agent.................................................................................................................. 8 UCE - Uncolisited Commercial Email (Spam)............................................................9 UCE - Uncolisited Commercial Email (Spam)............................................................................... 9 Aufbau einer E-Mail, RFC 822 Header...................................................................... 9 Aufbau einer E-Mail, RFC 822 Header.......................................................................................... 9 Mail-Dienste im Internet........................................................................................... 10 Mail-Dienste im Internet........................................................................................... 10 Mail-Protokollen........................................................................................................11 Mail-Protokollen........................................................................................................11 SMTP - Simple Mail Transfer Protocol......................................................................................... 11 SMTP - Simple Mail Transfer Protocol (port 25).......................................................................... 11 ESMTP -Extended Simple Mail Transfer Protocol ...................................................................... 11 ESMTP -Extended Simple Mail Transfer Protocol (port 25)......................................................... 11 POP3 - Post Office Protocoll Version 3 ...................................................................................... 12 POP3 - Post Office Protocoll Version 3 (Port 110)...................................................................... 12 Testen vom POP3 mit telnet:.......................................................................................12 IMAP - Interactive Mail Access Protocol...................................................................................... 13 IMAP - Interactive Mail Access Protocol (Port 143)..................................................................... 13 Testen von IMAP mit telnet:.........................................................................................13 LMTP - Local Mail Transport Protocol......................................................................................... 14 LMTP - Local Mail Transport Protocol......................................................................................... 14 Installation of Postfix................................................................................................ 14 Testing postfix locally............................................................................................... 14 Testing postfix remotely............................................................................................15 Postfix: Einen von vielen Mail-Servern....................................................................15 Qmail........................................................................................................................................... 15 Postfix.......................................................................................................................................... 15 ZMailer......................................................................................................................................... 15 Exim............................................................................................................................................. 15 CommuniGate Pro....................................................................................................................... 15 Postifix-Information...................................................................................................................... 16 Postifix-Information...................................................................................................................... 16 Zusätzliche Dokumentation......................................................................................................... 16 Zusätzliche Dokumentation......................................................................................................... 16 Postfix-Aufbau .........................................................................................................16 Mail processing sequence of events:.......................................................................16 Receiving e-mail.......................................................................................................................... 16 From local user:...........................................................................................................16 From remote host:....................................................................................................... 17 Mail Header Format ....................................................................................................17 Message processing and Delivery............................................................................................... 17 Postfix-Interne-Programme......................................................................................18 Postfix-Interne-Programme.......................................................................................................... 18 master.......................................................................................................................................... 18 bounce......................................................................................................................................... 18 cleanup........................................................................................................................................ 18 error............................................................................................................................................. 18 local............................................................................................................................................. 18 pickup.......................................................................................................................................... 18 pipe.............................................................................................................................................. 18 postdrop....................................................................................................................................... 18 qmgr............................................................................................................................................. 18 smtp............................................................................................................................................. 18 smtpd........................................................................................................................................... 18 74_Mail_Services.sxw - 2 Linux-Kurs Themen - Mail Services - June 14, 2009 Michel Bisson trivial-rewrite................................................................................................................................ 18 showq.......................................................................................................................................... 18 tlsmgr........................................................................................................................................... 18 flush............................................................................................................................................. 18 Postfix-Warteschlangen........................................................................................... 19 maildrop....................................................................................................................................... 19 incoming...................................................................................................................................... 19 active........................................................................................................................................... 19 defer............................................................................................................................................. 19 deferred....................................................................................................................................... 19 mail.............................................................................................................................................. 19 Postfix-Werkzeuge................................................................................................... 19 Postfix-Werkzeuge....................................................................................................................... 19 Extra