Fake SMTP Server for testing
When you develop a website or an application, you may need to use a fake SMTP server for debugging. Fake SMTP servers access emails, but they won’t deliver emails to the recipient’s email address.
The simplest way to run a debugging SMTP server is using the following python code
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python3 -m smtpd -n -c DebuggingServer 0.0.0.0:2525 |
This will start an SMTP server on port 2525. It does not support SMTP authentication.
If you want to run a Fake SMTP server with Authentication support, use
https://github.com/rnwood/smtp4dev
You can install it using docker.
First you need to install Docker. On Ubuntu, run
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apt install docker.io |
Run smtp4dev with the command
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docker run -d -it -p 3000:80 -p 2525:25 --restart=unless-stopped rnwood/smtp4dev |
SMTP Server will listen on port 2525. On port 3000, you have a web interface to read the mails
See SMTP