isFrom method
Checks of this messagin is from the specified sender address.
Optionally specify known aliases and set allowPlusAliases to true to allow aliass such as me+alias@domain.com.
Set allowPlusAliases to true in case + aliases like me+alias@domain.com are valid.
Implementation
bool isFrom(MailAddress sender,
{List<MailAddress>? aliases, bool allowPlusAliases = false}) {
return (findSender(sender,
aliases: aliases, allowPlusAliases: allowPlusAliases) !=
null);
}