When replying a message, the e-mailclient generates a message:
On 15 sept. 2020 at 21.42 .... wrote:
While the e-mail was sent at 13.42 hours.
This goes only wrong when replying the e-mail. Not when forwaring.
When comparing the code from 1.38 with 1.37, i see something changed in the function SendMessageHeaders() in smtp_message.php
-$date = date("r");
+$date=date("D, d M Y H:i:s T");
When using version 1.37 the problem was solved!