Is it possible to disable SPA (can't send emails)

[sysaphys]

My SMTP server requires authentication however it does not work with Secure Password Authentication.

I've tried leaving $rcmail_config['smtp_auth_type'] = '';
blank but it still refuses to send emails.

What can I do?

Thanks in advance! (and yes I tried plain, login etc)

[sysaphys]

Bump

Through trial and error I simply just enabled PHP mail functions instead. It works but I'm not sure if I'll encounter any unforeseen issues.

[wfong]

Is your ISP's SMTP server on the same server as the Web server?

[sysaphys]

No, I'm on a shared hosting plan and they have their own imap and smtp servers.