<div>
You should have one IP as a backup to use in emergency cases.<br />
please check balcklist using <a href="http://www.mxtoolbox.com" rel="ugc">www.mxtoolbox.com</a><br />
Request to delist the IP. <br />
Before requesting for delisting please make sure spamming is stopped.<br />
Otheriwise it will get listed again.
</div>


You should have one IP as a backup to use in emergency cases.
please check balcklist using www.mxtoolbox.com [http://www.mxtoolbox.com]
Request to delist the IP.
Before requesting for delisting please make sure spamming is stopped.
Otheriwise it will get listed again.

<div>
You should install anti-spam service for incoming and outgoing email. This greatly reduces the chance of that happening. I suggest trying GFI Mail Essentials. We have used it for eight years and it works very well.<br />
<br />
I would also move each company to it's own static public IP address. After that, you can email the organization of the steps you have taken and most of the time they will remove that Ip/Domain from the black list within 24 hours.<br />
<br />
I had that happen to a client before and know how painful it can be. Hope this helps!
</div>


You should install anti-spam service for incoming and outgoing email. This greatly reduces the chance of that happening. I suggest trying GFI Mail Essentials. We have used it for eight years and it works very well.

I would also move each company to it's own static public IP address. After that, you can email the organization of the steps you have taken and most of the time they will remove that Ip/Domain from the black list within 24 hours.

I had that happen to a client before and know how painful it can be. Hope this helps!

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<div class="content wysiwyg-content">
Hi,<br />
<br />
We are running an exchange server 2010 in the datacenter. Different company's are on the same exchange server.<br />
<br />
the exchange server has only 1 public ip.<br />
<br />
now company x has been spamming and the exchange ip adress is now on a blacklist.<br />
<br />
also resulting that the other company's cannot email anymore. <br />
<br />
is there a way to prevent this? can exchange use multiple ip's? ex, for each company or is there another great solution?
</div>
</div>


Hi,

We are running an exchange server 2010 in the datacenter. Different company's are on the same exchange server.

the exchange server has only 1 public ip.

now company x has been spamming and the exchange ip adress is now on a blacklist.

also resulting that the other company's cannot email anymore. 

is there a way to prevent this? can exchange use multiple ip's? ex, for each company or is there another great solution?

exchange on blacklist

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

An email client, email reader or more formally mail user agent (MUA) is a computer program used to access and manage a user's email. A web application that provides message management, composition, and reception functions is sometimes also considered an email client, but more commonly referred to as webmail.