PHP SMTP Email Sending and Thunderbird Login Issues

[nothingly]

I am experiencing issues with sending emails using PHP and logging into my email account with Thunderbird. Here are the details:

PHP SMTP Email Sending:

I am using the following PHP code to send emails via SMTP, but it fails.

I am unable to log into my email account using Thunderbird. I have checked my username and password, but I still cannot connect. Are there specific settings or configurations I need to use in Thunderbird to connect to the billionmail SMTP server? Questions:

Does billionmail support SMTP connections from PHP scripts? Are there any specific configurations required for Thunderbird to log in successfully?

If necessary, I can provide further details from my log files. I would appreciate any guidance or assistance you can provide.

send_mail.txt

[dreambladeflag]

Please check your necessary ports have allowed to outgoing according to our tutorial. https://www.billionmail.com/start/preparation.html

[nothingly]

I have opened all the required ports and the firewall also allows them to pass through,Please see terminal information

test.txt

[nothingly]

As shown in the picture, I choose custom on SMTP, and then the customized server is the local machine. Can it be used as an SMTP server connection?

[dreambladeflag]

Of course. You can use any SMTP server to relay your BillionMail.