Set the 'to' name
It is preferable to do this with the to() method, but this is provided to ensure that all properties can be set with direct access, i.e. $mailer->toName = 'User Name';
This sets the 'to name' for whatever the last added 'to' email address was.
The 'to' name
Object instance it was called from (method supports fluent interface).
Method can throw exceptions on error:
WireException- if you attempt to set a toName before a to email.
API reference based on ProcessWire core version 3.0.130