![]() ![]() I suggest you use SSH to follow this tutorial from your usual computer and copy/paste commands and configurations (there are a lot of them!). A static public IP address (or at least one dynamic DNS service, like No-Ip).Īlso, know that I make this tutorial on Raspberry Pi OS, so I recommend installing Raspberry Pi OS first (Lite will be enough) by following this tutorial.A domain name (I will use in all the steps below, don’t forget to change it).But if you want to use an SD card you can, I did a benchmark of the most popular SD cards here. A micro-SD card or USB key: I tend to use SD cards less and less, and use this USB drive from SanDisk instead for all my experiments.A Raspberry Pi: Any model should be fine, but I would recommend a Raspberry Pi 4 or at least a Raspberry Pi 3B+.If you want to follow the tutorial until the end, you will need: If you want to set up an SMTP server, the requirements are almost non-existent.Ī Raspberry Pi and an SMTP server that will serve as a relay is sufficient (Gmail for example). The first third of the book teaches you the basics, but the following chapters include projects you can try on your own. It’s a 30-day challenge where you learn one new thing every day until you become a Raspberry Pi expert. If you’re looking to quickly progress on Raspberry Pi, you can check out my e-book here. We will now learn how to install everything in this step-by-step tutorial. Then other services can be added, like Dovecot for POP/IMAP support and Roundcube can be used as webmail. Postfix is the main service to install on Raspberry Pi to host a mail server. So, we will see the different steps of setting up an email server, be it a simple SMTP or a complete suite with webmail. There are many projects that require the ability to send emails, but creating a mail server can also be a project on its own. When firewalls block the TCP DNS connections, it can cause hard-to-diagnose problems. Although rarely used, TCP connections are occasionally used instead of UDP connections. WARNING: One or more of your DNS servers does not accept TCP connections. Server is running and shows no error in logs. Please verify that your SMTP server setting is correct and try again, or else contract your network administrator. The server may be unable or is refusing SMTP connections. The message could not be sent because connecting to SMTP server failed. Mail server responded: (nothining)Īttempting to send out mail triggers the following error: An error occurred sending mail: The mail server sent an incorrect greeting: Cannot connect to SMTP server 76.233.238.75 (76.233.238.75:25), connect error 10060. I am trying to connect to hMailServer by using my email client thunderbird from a different computer - within my network connecting trough my domain name prompts the following error message: An error occurred with the POP3 mail server. What is not working is connecting to the server to get or send emails. I can see this by checking in administrator > status > status > processed messages (2) Mails are getting delivered to the mail server. I installed hMailServer and it all looks like it should work. I have apache and IIS running on it together, apache is relaying to IIS - I had to turn off “local” DNS service as IIS would not release port 443 and would then conflict with SSL configuration in apache (IIS on XP gives no control over what port to use for SSL but defaults to 443). My setup: I am using a win XP computers as my server.
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