bug: cannot use SMTP2GO as an SMTP server #50

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opened 2025-10-16 15:26:35 -04:00 by GiamBoscaro · 2 comments

GiamBoscaro commented

2025-10-16 15:26:35 -04:00

(Migrated from github.com)

I have always used smtp2go as an SMTP server to send emails from my other services (mostly reset password emails or alerts).

I have then tried to setup SubTrackr the same way but I do get some problems:

Clicking in test connection does not show any loader, nor shows a message if the test was successful or not.
Checking in the browser console, I have seen the error: 400 Authentication failed: unencrypted connection
Using an SSL port, the test connection API request just loads until it times out.

SMTP2Go shows this configuration settings (then I do obviously have a username and password).

SMTP Server:  mail.smtp2go.com
SMTP Port: 2525
Alternative ports: 8025, 587, 80 or 25. TLS is available on the same ports.
SSL is available on ports 465, 8465 and 443.

I tested all the ports available. The SMTP ports fail with 400 Authentication failed: unencrypted connection, the TLS ports hang until timeout.

I have always used [smtp2go](https://www.smtp2go.com) as an SMTP server to send emails from my other services (mostly reset password emails or alerts). I have then tried to setup SubTrackr the same way but I do get some problems: 1. Clicking in test connection does not show any loader, nor shows a message if the test was successful or not. 2. Checking in the browser console, I have seen the error: `400 Authentication failed: unencrypted connection` 3. Using an SSL port, the test connection API request just loads until it times out. SMTP2Go shows this configuration settings (then I do obviously have a username and password). ``` SMTP Server: mail.smtp2go.com SMTP Port: 2525 Alternative ports: 8025, 587, 80 or 25. TLS is available on the same ports. SSL is available on ports 465, 8465 and 443. ``` I tested all the ports available. The SMTP ports fail with `400 Authentication failed: unencrypted connection`, the TLS ports hang until timeout.

bscott commented

2025-10-19 17:03:53 -04:00

(Migrated from github.com)

Thanks @GiamBoscaro -- I used smtp2go in the past, I'll flag this as a bug and see what the issue is. Thanks for reporting it.

bscott commented

2025-11-02 14:19:11 -05:00

(Migrated from github.com)

@GiamBoscaro Cutting a new release soon with a few other bug fixes.

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bscott/subtrackr#50

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