Update to Plesk for Win. 7.5.6 -> mail flood

[ICTTrend]

First, i cant find the non-Reloaded forum anymore, so i post it here.

I updated today to 7.5.6 and since then i got flooded by my server with empty mails.

Received: from servername.domain.tld (servername.domain.tld[xxx.xxx.xxx.xxx])
by servername02.domain.tld(Postfix) with ESMTP id DA35269E44
for <postmaster@domain.tld>; Fri, 6 Jan 2006 18:40:55 +0100 (CET)
Message-Id: <20060106174055.DA35269E44@servername.domain.tld>
Date: Fri, 6 Jan 2006 18:40:55 +0100 (CET)
From: postmaster@servername.domain.tld
To: undisclosed-recipients: ;:

Help!

 

[ICTTrend]

we've a lot of problems sinse the update tot 7.5.6, can somebody help us?

Mail wont receive sometimes, or cant be send.

 

[Pavluha]

Please, try to check MailEnable -> SMTP Connector ... Properties and set real address.
Also check Output and Input Queues and analyze bad mail (undisclosed-recipients).
Also you can add undisclosed-recipients to black list.

 

[ICTTrend]

all ready done, real hostdomain e.d.

but, i still get a lot of blank mail