Failing to set the delivery server

[iulian]

Good afternoon everybody. I am having an issue regarding the seting up of the delivery server. I did all the steps from this video

and I am stucked in this moment on this step which is not presented in the video.

What I used to my configuration:
1 SMTP server from Digital Ocean
1 Domain
Virtual Min and Webmin
Mailwizz

Now I am reciving this error :"Failed to authenticate on SMTP server with username "mysql@ceoiulian.com" using 2 possible authenticators. Authenticator LOGIN returned Expected response code 235 but got code "454", with message "454 4.7.0 Temporary authentication failure: generic failure" and
this error
"Connection could not be established with host mail.ceoiulian.com :stream_socket_client(): unable to connect to starttls://mail.ceoiulian.com:25 (Unable to find the socket transport "starttls" - did you forget to enable it when you configured PHP?)
Log data:
++ Starting Swift_SmtpTransport
!! Connection could not be established with host mail.ceoiulian.com :stream_socket_client(): unable to connect to starttls://mail.ceoiulian.com:25 (Unable to find the socket transport "starttls" - did you forget to enable it when you configured PHP?) (code: 0)"
if I change the protocol to STARTLS.

What I would like to mention is that I am new on Mailwizz and hope you will help me. Thank you in advance!

 

[twisted1919]

Connection could not be established with host mail.ceoiulian.com :stream_socket_client(): unable to connect to starttls://mail.ceoiulian.com:25 (Unable to find the socket transport "starttls" - did you forget to enable it when you configured PHP?

You most likely want TLS on port 587. If you use port 25, then you don't need TLS.