Spoofed mails are incoming messages that use one of the domains on the server without being authorized to send (i.e. the client that has logged on to the server). To reject such mails with ISPConfig, create the file /etc/postfix/mysql-virtual_domains_inverted.cf and change the group to postfix: user = ispconfig password = […]
Email clients like Outlook or Thunderbird can be automatically configured to connect to the mail server on the correct ports and the settings for the encryption can be adjusted (especially with Outlook you can easily slip). There is a new plugin for ISPConfig: ISPConfig Automail This allows a central website […]
I wrote a small post about how the mail header is to be understood for spam-mails, when the additional lines are written to the header and how the mails with Dovecot / ISPConfig end up not in the inbox, but in the junk folder. The article can be found here: […]
At the moment we see spamming mails, which are sent via the contact form, on many customer servers running a current Joomla and OS. The logs contain lines like: 117.90.137.141 – – [08/Sep/2017:20:01:37 +0200] “POST /index.php/kontakt HTTP/1.1” 302 483 “http://www.WEBSEITE.de/index.php/kontakt” “Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) […]
Requirements: ISPConfig >= 3.1 and Bind DNS-Server Installation: cd /tmp wget https://www.schaal-it.com/downloads/caa-patch.tgz tar xfz caa-patch.tgz cd caa-patch php -q install.php Install this patch on all servers in a multiserver-setup. What is a CAA-Record? CAA can be used to determine which certification authority is allowed to issue certificates for the domain. […]
We regularly publish new rules for SpamAssassin. Most of the rules have a score from 5. You can use our Ruleset for free. Just add our update-Channel to your SpamAssassin-Config our use our Script to get new / updated Rules. Don’t forget to restart amavis after installing / updating rules. […]
With the Antispam plugin from Dovecot, new spam mails can be pushed by hand into their own IMAP folder. Mails that are moved to this folder, spamassassin learns as spam mails. If a mail is moved from this folder (for example to the INBOX because it is not spam), spamassassin […]
I intalled PHP 7 als as and additional PHP-Version using https://www.howtoforge.com/tutorial/how-to-install-php-7-on-debian/ installiert. To use PHP7 on Debian Jessie with imagick: apt-get install libmagickwand-dev libmagickcore-dev cd /opt/php-7.1/etc pecl -C ./pear.conf install imagick echo extension=imagick.so >> ../lib/php.ini