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Country Blocking and SMTP traffic

ICT Department1

I have been toying with tightening up the country blocking and wanted to know what peoples thoughts were on turning on the country blocking on for most obvious countries and then FROM to the majority of others.  My question was on if people do this but allow SMTP traffic through.  Would this just increase the load on the spam filter?

 

Any thoughts?

 

Regards

Lee



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  • 0

    Sorry for asking, but I didn't get the question right.

    Increase the load compared to without country blocking or without the exception of smtp?

    So I'll try to answer my best guess.

    Depending of your email volume the spam filter should handle the load without country blocking. If you need this, the device is too small. If you use country blocking and block smtp for some countries the load will be lower than without.

     

    Best
    Alex

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  • 0 in reply to Alexander Busch

    sorry I didnt explain myself very well.  I was just wanting to know if it was good practise to adjust country blocking settings as required (I was looking to at least set to BLOCK FROM for most countries) but then make an exception to the rule for SMTP and just let the spam filter deal with them as they come through!.
    I was just after some advice on making sure that I set up the best security policy without hindering email flow.
    Hope this make more sense.
    regards
    Lee

  • 0 in reply to ICT Department1

    Hello Lee,

    this makes much sense to me. Mainly because it is the setup I have done it myself :-) I use coutry blocking to get rid off attack attempts mainly. But of course you can't be sure to block out some email server you don't want to. That's why make an exception for smtp is the best way, I think. The spam filter does a good job in my opinion.

    Hope this was the right direction to your question.

    Best

    Alex

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