http://dokuwiki.starlab.cz/ 2026-04-18T21:57:54+0200 http://dokuwiki.starlab.cz/ http://dokuwiki.starlab.cz/lib/tpl/desert/images/favicon.ico text/html 2009-02-19T05:09:38+0200 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.starlab.cz/doku.php?id=linux:mail:courier2dovecot&rev=1235016578&do=diff Mirgrating courier migrating whole Courier soulutions means basicly migrating only imap and maildrop deliverer. The rest pop3 and auth daemon are trivial. Case Study Original virtual maildir structure /var/mail/virtual/example.com/name.surname/Maildir text/html 2009-07-07T16:06:17+0200 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.starlab.cz/doku.php?id=linux:mail:header_checks&rev=1246975577&do=diff Header and Body checks Header and Body check are very simple to use with postfix: header_checks = regexp:/etc/postfix/header_checks body_checks = regexp:/etc/postfix/body_checks Obsah souboru header_checks: /^Subject: .*Varovani pred novou verzi podvodnych e-mailu/ REJECT text/html 2009-06-18T12:21:08+0200 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.starlab.cz/doku.php?id=linux:mail:helper&rev=1245320468&do=diff Nechat bezet stroj, ale zastavit prijem e-mailu iptables -I INPUT -p tcp --dport 25 -j REJECT a pak pravidlo zrusit iptables -D INPUT -p tcp --dport 25 -j REJECT Vyhodit zlobivy plugin OCR ze spamassassinu vi /etc/spamassassin/FuzzyOcr.cf zakomentovat radek #loadplugin FuzzyOcr text/html 2009-07-03T15:23:16+0200 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.starlab.cz/doku.php?id=linux:mail:imap&rev=1246627396&do=diff imap telnetem <http://bobpeers.com/technical/telnet_imap.php> text/html 2009-03-05T00:11:45+0200 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.starlab.cz/doku.php?id=linux:mail:migration&rev=1236208305&do=diff Migrace mail serveru ---------- Původní IP musí zůstat na původním (starém) serveru. Přepnutí je třeba udělat (během vteřiny) bez výpadku. * na novém serveru rozjedeme celý systém postfix s dovecotem/courierem a v klidu otestujeme text/html 2009-06-04T17:37:56+0200 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.starlab.cz/doku.php?id=linux:mail:ocr&rev=1244129876&do=diff Links * <http://fuzzyocr.own-hero.net/wiki/Installation-3.6.x> text/html 2009-01-19T17:42:38+0200 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.starlab.cz/doku.php?id=linux:mail:postfix_queue&rev=1232383358&do=diff Navod na smazani vsech spamu, zacinajicich alenka@ mailq | tail +2 | grep -v '^ *(' | awk 'BEGIN { RS = "" } # $7=sender, $8=recipient1, $9=recipient2 { if ( $8 ~ /alenka@/) print $1 } '|tr -d '*!' | postsuper -d - text/html 2011-08-15T20:49:43+0200 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.starlab.cz/doku.php?id=linux:mail:smtp_authentication&rev=1313434183&do=diff Testing SMTP AUTH connections ---------- % perl -MMIME::Base64 -e 'print encode_base64("\000jms1\@jms1.net\000not.my.real.password")' AGptczFAam1zMS5uZXQAbm90Lm15LnJlYWwucGFzc3dvcmQ=% telnet 1.2.3.4 25 220 a.mx.jms1.net NO UCE ESMTP ehlo testing 250-a.mx.jms1.net NO UCE 250-STARTTLS 250-PIPELINING 250 8BITMIME quit text/html 2009-03-05T19:01:37+0200 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.starlab.cz/doku.php?id=linux:mail:tests&rev=1236276097&do=diff Simple scripts for easy mail delivery testing telnet 81.0.212.153 25 <<EOF ehlo eco.informica.cz mail from:<dast@panelnet.cz> rcpt to:<podpora@webdomena.cz> data Subject: testik x . quit EOFtelnet 81.0.212.153 110 Trying 81.0.212.153... Connected to 81.0.212.153. Escape character is '^]'. +OK Dovecot ready. USER a@b.c +OK PASS a +OK Logged in. list +OK 0 messages: . quit +OK Logging out.