SMTP No STARTTLS, TLS or SSL? #112

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MrUnknownDE · 2026-04-05T16:15:47+02:00

MrUnknownDE commented

2026-04-05 16:15:47 +02:00

Originally created by @zer0ish on 2/21/2026

Hello,

I use proton mail business account for my mail server and it works on all my other docker containers.
I fill this form out and get this error: failed to close data writer: 550 5.7.0 Blocked by SpamAssassin

This is the only line in my log that shows after I click send test notification:
[GIN] 2026/02/20 - 21:57:31 | 400 | 7.055980365s | 10.77.77.68 | POST "/api/v1/notifiers/direct-test"

The IP is the laptop I used to do the test in my browser.

I'm using the correct port username, account, etc. I'm copy pasting from a working container to make sure.

The only thing I can see that this one is missing is a STARTTLS/TLS/SSL option.
With Proton it seems to be either STARTTLS or TLS for the majority of my other containers use.

Any help to get this resolved would be great. I like the software and how I can backup to cloudflare. But would love to also be able to use my proton smtp server for notifications.

Thanks

*Originally created by @zer0ish on 2/21/2026* Hello, I use proton mail business account for my mail server and it works on all my other docker containers. I fill this form out and get this error: `failed to close data writer: 550 5.7.0 Blocked by SpamAssassin` <img width="770" height="615" alt="Image" src="https://github.com/user-attachments/assets/d9cd55b2-b266-44dc-9f76-0ebef9311664" /> This is the only line in my log that shows after I click send test notification: `[GIN] 2026/02/20 - 21:57:31 | 400 | 7.055980365s | 10.77.77.68 | POST "/api/v1/notifiers/direct-test"` The IP is the laptop I used to do the test in my browser. I'm using the correct port username, account, etc. I'm copy pasting from a working container to make sure. The only thing I can see that this one is missing is a STARTTLS/TLS/SSL option. With Proton it seems to be either STARTTLS or TLS for the majority of my other containers use. Any help to get this resolved would be great. I like the software and how I can backup to cloudflare. But would love to also be able to use my proton smtp server for notifications. Thanks

MrUnknownDE closed this issue

2026-04-05 16:15:47 +02:00

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Reference: github/databasus#112