Skip to content
workaround.org

workaround.org

literacy and subtleties for open-source bigots and other weirdos

  • ISPmail tutorials
  • Thoughts
  • Linux tips
  • Projects
  • Squid
  • Padrino
  • Zabbix
  • Imprints/Privacy

ISPmail Stretch

ISPmail Stretch 

Prevent spoofing with DKIM

Email sender spoofing is the act of pretending to be in control of someone else’s email address. This is a

Read more
ISPmail Stretch 

Fighting brute force attacks

So many bad guys everywhere. Paranoia you say? Well, take a look at your mail log. While I was preparing

Read more
ISPmail Stretch 

Success stories

I would appreciate if you leave a comment here telling others if your mail server is running. Perhaps even a

Read more
ISPmail Stretch 

Troubleshooting your mail server

General troubleshooting tips Run “postfix check” to make Postfix look for obvious configuration errors. If it returns no output then

Read more
ISPmail Stretch 

Filtering out viruses and malware

My usual rant: I consider virus scanners snake oil. If anyone wants to seriously infect a computer by sending an infected

Read more
ISPmail Stretch 

Filtering out spam with rspamd

You have a perfectly working mail server by now. But before you go live let’s do something about the insane amount

Read more
ISPmail Stretch 

Managing users, aliases and domains

Maybe you already know what you have to do to create mail domains and mail users. After all I tried

Read more
ISPmail Stretch 

DNS MX records

About MX entries So now you have your working mail server. But how do other mail servers get to know

Read more
ISPmail Stretch 

Relaying with SMTP authentication

Relaying Your mail server is almost ready for use. But one puzzle piece is missing. Your users can already fetch

Read more
ISPmail Stretch 

Testing email delivery

So far you have spent considerable time with theory and configuration. Are you worried whether all you did actually leads to a

Read more
  • ← Previous

Readers’ comments

  • fred 2021-02-25 at 17:51 on Creating a TLS encryption key and certificateHi I am discovering this site for security https://securityheaders.com. I have added things to the .conf file for better results
  • John 2021-02-23 at 13:43 on ISPmail tutorialsA couple of typos on the page: Your mail users can either install a comfortable IMAP client like Thunderbird or
  • Tim Small 2021-02-19 at 15:11 on Monitoring and backuprestic does not (yet) feature compression (restic bug #21 tracks progress on this feature). Yet another backup software package which
  • André 2021-02-18 at 14:35 on Webmail using RoundcubeHallo, ich hab nach der Anleitung alles perfekt hinbekommen aber hätte gerne roundcube in der Version 1.4.11. wie führe ich
  • Bryce J 2021-02-18 at 01:25 on Success storiesHi Christoph I just wanted to say that I have never before come across such a comprehensive and thorough tutorial.
  • yoann 2021-02-16 at 18:44 on Setting up DovecotHello, i have an error when im trying to send an email : Feb 16 19:41:27 mail postfix/smtps/smtpd[10263]: warning: SASL
  • Tim Small 2021-02-15 at 17:13 on Creating a TLS encryption key and certificateMight be worth signposting the "Mozilla SSL Configuration Generator" as a good source for SSL configuration snippets? It supports all
  • Max 2021-02-14 at 20:25 on Filtering out spam with rspamdWenn E-Mails im Junk-Ordner liegen und diese gelöscht werden (direkt im Junk-Ordner) dann wird das Ham Script ausgeführt. Gibt es
  • Hector 2021-02-14 at 14:41 on Firewalling and brute force mitigationFor that last post this is what I meant to add. [DEFAULT] banaction = nftables-multiport chain = input [apache-auth] enabled
  • Hector 2021-02-14 at 14:40 on Firewalling and brute force mitigationShould be in "/etc/fail2ban/jail.d/jail.local" instead of "/etc/fail2ban/jail.local"? Reason I ask is because on top of that "/etc/fail2ban/jail.local" file there is
If any of the content on workaround.org has made your daily life less miserable you are invited to donate via Paypal to email@christoph-haas.de. I also have a wish list of Amazon things for my projects if you would like to surprise me. However please don't feel obliged.

All contents are Copyright © 2015 Christoph Haas - email@christoph-haas.de. Only the web site theme is a customized child theme based on the beautiful ColorMag theme from themegrill.com and thus licensed under the GPL.

Copyright © 2021 workaround.org. All rights reserved.
Theme: ColorMag by ThemeGrill. Powered by WordPress.