[Users] [21:15:11] SMTP< 554 5.7.1 <unknown>: Helo command rejected: EHLO Unknown exploit

[koeart]

Hello,

> [...]
> Both GMX as well as Arcor end up with this error:

The SSL Settings are correct (STARTTLS etc):
<https://hilfe.gmx.net/mailprogramme/imap.html#daten>?

And: "IMAP steht Ihnen nur als GMX Premium-Kunde zur Verfügung.".
(IMAP is only available for Premium Accounts")

I tried it with my gmx.net Account and it didn't work either. But maybe
because of the above reason!


Regards,
	koeart