Spam in Exchange 2013

Hi,

I installed exchange 2013 server, everything works fine except I get a lot of spam, how can I block it from the server or to increase the security?
compx_itAsked:
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Daniel HelgenbergerCommented:
Did you install the Anti Spam tools? These are not installed by default for some resason. In exchange 2013, you need to configure them with PowerShell only.

Normally the default works fine already. You might want to add RBL's though. See TechNet:
http://technet.microsoft.com/en-US/library/bb201691(v=exchg.150).aspx
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Mohammed KhawajaManager - Infrastructure:  Information TechnologyCommented:
Depending on the size of your organization and the level of spam you want to block as well as not overburden your staff, it might be a good idea to think of outsourcing this function.

We have outsourced our anti-spam and anti-virus for a very, very low price and the vendor also provides other features:

- Keeping a copy of all incoming and outgoing email for a month
- Blacklisting/whitelisting of sites possible either at domain level or user level
- Ability to use email (via web browser connecting to provider site) in an event of your Exchange server not online

Since we did this, traffic to our Exchange has reduced by 90+% and we use Fusemail (www.fusemail.com)
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R--RCommented:
Check this form technet.microsoft.com in sub section

Use the Shell to configure the junk email threshold for all mailboxes in your organization

http://technet.microsoft.com/en-us/library/bb123559(v=exchg.150).aspx

OR

You can use third pary Anti spam product to effectively stop spams entering your organization.
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R--RCommented:
check this from www.techieshelp.com may help you

http://www.techieshelp.com/exchange-2013-enable-anti-spam/

Anti-spam configuration can only be managed using the Exchange Management Shell only
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Md. MojahidCommented:
I would like to suggest Anti-Spam Protection.

For more details.  http://technet.microsoft.com/en-us/library/jj218660(v=exchg.150).aspx
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