SMTP Server Settings

If you have previously been advised to use either or as your SMTP server, you may find that some devices (e.g. routers from Netgear) are unable to send due to the lack of a subdomain.

We now recommend that all members use SMTP server

The following SMTP ports are available:
TLS or no encryption >> available on ports 25, 2525, 8025, 587 and 80.
SSL >> available on ports 465, 8465 and 443.

To see your SMTP username and password you will need to log in to your SMTP2GO account and choose 'Settings' > 'Users'.


We recommend that you copy and paste your SMTP username and password into your email client software - this will likely resolve any "535 incorrect authentication data" errors.

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