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Smtp Vs Spammers

Do I have to use Exchange on my server (windows 2003)  or I can use standard smtp/pop3  services ? I really dont like Exchange and I need to secure my smtp from spammers. I tried everything but I cant secure my smtp with standard smtp service. I cant check Anonymous access to my smtp because I get toooons of emails from spammers .  I cant put relay on specific ip , because I dont know form what pc my clients will send email and its not solution for me.  So how can I secure my smtp ?
Thanks
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Eddy_Milner
Asked:
Eddy_Milner
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2 Solutions
 
Henrik JohanssonSystems engineerCommented:
We're using greylisting since a couple of years on our frontend MX-hosts and got rid of the most of spamming.
In common, the SMTP-host with greylisting answers new/unknown senders that it nead to delay a couple of minutes and resend the message.

http://www.greylisting.org/
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Eddy_MilnerAuthor Commented:
Thanks but this is not a solution. I need somehow secure my smtp on the server , not outside of the server. Greylisting not offering any softwares or any solution on how to secure standart smtp.
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BitsBytesandMoreCommented:
Why are you hosting your email on your server? Lots of companies are now outsourcing the hosting of the email to their website hosting provider..... To answer your question above...... unless you have a specific reason such as cost, your website hosting company probably has better security and full time staff just to manage their exchange servers.... this is if you want to use the features of Exchange... if you don't use them or don't need them, you can use your pop/smtp with your website host provider. All you need to do is call them and tell them. They will take care of moving the MX record and making all the settings on their side (they usually do this by default when you purchased the domain name and signed up for the hosting)...
Bits...
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ICaldwellCommented:
Just make sure you ports (POP3/SMTP) require a login.... added security would be to put TLS encryption on the ports...  Exchange does this:http://www.networkworld.com/news/2007/011807-tls4.html

but so do many other software programs.... Google also uses TLS and requires login for all their members using POP3 & SMTP...
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Eddy_MilnerAuthor Commented:
BitsBytesandMore i dont need any other solution. The only solution i need is securing my standard SMTP and this is it. How complicated it can be? ICaldwell i dont use any exchange on my server. I have this option on  authentication pane in standard SMTP, but i have to check Basic authentication. Once I do it , on my Microsoft outlook  I have to put password and username but where I create this username and password ? It's not the same as on pop3 mailboxes.
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ICaldwellCommented:
What e-mail system are you using?
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BitsBytesandMoreCommented:
Eddy .... I was just answering your question "....Do I have to use Exchange on my server (windows 2003) ..." ...
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BitsBytesandMoreCommented:
There are many other email server applications in the market....
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Eddy_MilnerAuthor Commented:
BitsBytesandMore thanks but it's not what I asked, I asked how can i secure my standard smtp without using exchange or anyother software. I know there are solutions but is there simple solution? I am using SMTP/POP3 as default software that comes with server 2003. And I want to  know is there some tricks or anything can help to make it secure without using any other softwares?  
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ICaldwellCommented:
SMTP module is built into IIS 6, this you can secure, this is what I figure you talking about but POP3 is not built into Windows 2003... A mail platform does not come with windows and the SMTP module part of IIS is for relay not as a mail system... This is why Microsoft has Exchange.

Are you sure you don't have something else?  If not I think you need to look at other solutions... There are several out there which are free and easy to manage...
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BitsBytesandMoreCommented:
Eddy....you are not understanding   ... you need an email program... system... application... whatever you wish to call it....
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Eddy_MilnerAuthor Commented:
BitsBytesandMore so you saying that standard SMTP is useless against spammers? There is no way I can secure it?

ICaldwell this is the standard smtp on my server. i installed it from my "Manage you server". this is one of the role. I dont know if it standard or not but it was there. It's call Defult SMTP Virtual Server.
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BitsBytesandMoreCommented:
Your SMTP service is to be used by your email server application to send email (not to recieve it)....
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BitsBytesandMoreCommented:
Actually ... it is not a service ... it is a protocol...
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ICaldwellCommented:
Yes, this is the Default SMTP built into IIS, this is not designed as a mail system... This is designed for developers to use from their webpages on the server to transmit mail messages from the web server to the mail server.... This was never designed to handle mail as part of a mail system...

I would listen to BIts here.... Perhaps use Google for hosting your mail, or you ISP... I use google myself for my personal domain name and it works great... or if you want to keep it inhouse you can look at exchange or another system which is free like

http://www.hmailserver.com/

or

http://www.pmail.com/  (I used this one back in 98-2000, it worked well)
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ICaldwellCommented:
Objection!!!! I have stated a reason....
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