[Bug]: SMTP server setup with encryption set to none is still using starttls

[heiniha]

Error Message and Logs

Leaving the envryption field as "None" does not work for coolify to send the mail without starttls.
Our mailserver always receives requests including starttls, see log message below.
Refer to previous issue I made here: #4311, where the error was resolved, but now using version v4.0.0-beta.418, the issue seems to have come back.

LOG MESSAGE from mail server:
21:12:32.713345 IP xx.xx.xx.xx.39594 > xx.xx.xx.xx.25: Flags [P.], seq 19:29, ack 152, win 501, options [nop,nop,TS val 4162525193 ecr 4249281295], length 10: SMTP: STARTTLS

Steps to Reproduce

1. Configure smtp server settings with encryption set to None
2. Test send email
3. Coolify marks it as sent successfully
4. Mail server denies request with starttls

Example Repository URL

No response

Coolify Version

v4.0.0-beta.418

Are you using Coolify Cloud?

No (self-hosted)

Operating System and Version (self-hosted)

Ubuntu 24.04

Additional Information

No response