Reason
Your e-mails have been rejected by our mail system because the information provided in the e-mail header does not comply with the specifications in RFC 5322.
The header field "Date" is syntactically not correct.
Solution
Please make sure that the requirement of RFC 5322 chapter 3.3 for the header field "Date" is fulfilled.
Example of syntactically correct notation:
Date: Sat, 1 Jan 2000 12:00:59 +0200
As soon as the corrections have been made by you, you can deliver emails to our system again.