fubralimited/WP-Survey-And-Quiz-Tool — comment on commit 2f028a8c82e47ea0e4291398873f8c0a73703152
File:  line 0
By icambridge:

Why bypass wp_mail? You're not really gaining much here but losing a lot. Many people use plugins to use other sources to send their emails and haven't set up mail(), you've just broken the plugin for them.