Aspose::Words::Settings::MailMergeSettings::set_MailSubject method. Specifies the text which shall appear in the subject line of the e-mails or faxes produced during mail merge. The default value is an empty string in C++....Aspose::Words::Settings::MailMergeSettings::set_MailSubject method...value is an empty string. void Aspose :: Words :: Settings :: MailMergeSettings...