As of v0.9.4.0+
How to send the emails using WP Mail function or using SMTP plugin?
Note: The emails which are already scheduled (like 24hrs invitee reminder email) will go as per old setting.
- Navigate to WP Admin › WPCal › Settings › General Settings.
- Scroll down to the Email section.
- Enable the option "I understand. Use WP Mailer instead".
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4. Save it.
Now all your emails will be going through WP Mail function. If SMTP is configured, then it will go through it.