SMTP Settings Not Working

Hi everyone, I've recently installed the on premises version of Akaunting and so far everithing is good. The only issue that I have found is that, no matter what settings I use for the SMTP option the system is not able to send any email at all.
I have dig this issue and tested with the SMTP Test Tool from GMass using my credentials from Gmail for SMTP relay and the new App Password. In the test tool from GMass I was able to send a test email and I got this:

```>> Test message
>> --=-mVPn9tSCEUY6cQ6diMm4og==
>> Content-Type: text/html; charset=utf-8
>> Content-Id:
>>
>> Test message
>> --=-mVPn9tSCEUY6cQ6diMm4og==--
>> .
> AUTH PLAIN AG1pZ2FyYmVAZ21haWwuY29tAHR1Y2sgdHNzYyBucnZwIHlwaWc=