Breaking: #61783 - Removed deprecated mailing API
See forge#61783
Description
The deprecated methods to send email are removed.
This includes the Mail
method, the mail delivery substitution API and the plain
methods.
Impact
Any call to Mail
or General
will result in a fatal error.
The option $GLOBALS
does not have any effect.
Affected installations
Any installation using an extension still using the deprecated API will fail.
Migration
Use the \TYPO3\
API for sending email.