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“Simplicity is the Ultimate Sophistication” Leonardo Da Vinci


SMTP host
 host or ip address of your smtp server (example: smtp.gmail.com)
 FYI: it seems smtp.gmail.com is usable only by Google G Suite subscribers.
the default port is 25, but some smtp server use a custom port (example: 587)
 checked it only if the smtp server needs a secured connection (ssl, tsl)
 most of smtp servers need an authentication (login/password). Check it if required
required if 'Use authentication' is checked (ex: account or account@foo.com)
required if 'Use authentication' is checked
Email from
the sender's email address (example: account@gmail.com)
Email to
very important : the test mail will be sent to this address (ex: account@gmail.com)
19 + 0 =
Type the result (check if you are not a robot)
Test your mail server on the fly
4.5 out of 5
SMTP send error
We made this tool for our personal use.
If you need to test a smtp server, please feel free to use it at your own risks.

For your information, no data will be persistent or stored on our server.

If you still don't feel confident, we advise you to use a test account.
You can also change your password after your test(s).

© SMTPer v0.204 (2010 - 2020)