Hello there,
I've got a problem with an email I just can't get sent to an address because the mail system of the receiver answers with this:
mail postfix/smtp[29969]: E5DCF60327: to=<***@***.de>, relay=mail.***.de[***]:25, delay=5022, delays=5021/0.01/0.2/0.12, dsn=4.1.7, status=deferred (host...