Hi,
Thank you for getting in touch with us.
Yes, you can configure your own gateway in the plugin.
To configure your SMTP/SMS gateway provider with the plugin check our FAQ.
Please let me know if you want me to do this set-up for you.
I will happy to help you with the set-up.
Would it be possible for you to drop us a query at otpsupport@xecurify.com/shivanee@xecurify.com?