Hello I send my mail to india. normally i have no faults. But often the mail shows this time >>>>> Mo 01.01.0001 01:00
am using zertificate for 365days ,only signed mails, encryption i dont know, when the mail is encrypted or not . My Signatur is a valid SMIME zertifikat from D-Trust
Please help me with this >Mo 01.01.0001 01:00