Are there any specific configurations in php.ini that need to be enabled for successful email sending with Mercury?
To successfully send emails with Mercury, you need to ensure that the `SMTP` and `smtp_port` settings in your `php.ini` file are correctly configured. Additionally, you may need to enable the `sendmail_from` setting to specify the email address that will be used as the sender.
[mail function]
; For Win32 only.
SMTP = localhost
smtp_port = 25
; For Win32 only.
sendmail_from = me@example.com