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Does Anyone Use "Strict RDNS Checks"?

GoAboutYourBusiness
We have the "Use strict RDNS checks" option enabled and I'm constantly hit by users who report outside organizations have their email rejected because their "I.T." people don't seem to understand how to setup a valid RDNS entry for their mail servers.

Is it just me or is there a completely insane amount of people out there that don't know how to do this?  Or are they just really that lazy?

Anyway, does anyone else actually use the "strict RDNS checks" option?  Should I just give up and not use that option?  I'm sick of constantly having to explain this situation and/or create exceptions for these people.

Thanks!


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  • 0

    Anyway, does anyone else actually use the "strict RDNS checks" option?  Should I just give up and not use that option?  I'm sick of constantly having to explain this situation and/or create exceptions for these people.


    Don't use it in production environments (advice from the field)...this is  neverending battle with other IT guys and your users complaining about e-mails that have never been received.
  • 0 in reply to vilic
    Don't use it in production environments (advice from the field)...this is  neverending battle with other IT guys and your users complaining about e-mails that have never been received.


    i'd say the same thing bout batv..rdns i don't have an issue with it's always spam in my installations i see....[:)]

    Owner:  Emmanuel Technology Consulting

    http://etc-md.com

    Former Sophos SG(Astaro) advocate/researcher/Silver Partner

    PfSense w/Suricata, ntopng, 

    Other addons to follow

  • 0 in reply to William Warren
    i'd say the same thing bout batv..rdns i don't have an issue with it's always spam in my installations i see....[:)]
    Hey William.  BATV is supposed to be stopping fake bounces from coming into your email server as though they were legit messages.  And, at least according to the logs, that's all I ever see BATV blocking.  I must be missing something. When is that a problem?
  • 0 in reply to eganders_01
    BATV stops fake bounces from coming into your email server.  And that's all I ever see BATV blocking according to the logs.  I must be missing something. When is that a problem?


    I've had it block much more outgoing legitimate mail than anything else.

    Owner:  Emmanuel Technology Consulting

    http://etc-md.com

    Former Sophos SG(Astaro) advocate/researcher/Silver Partner

    PfSense w/Suricata, ntopng, 

    Other addons to follow

Reply
  • 0 in reply to eganders_01
    BATV stops fake bounces from coming into your email server.  And that's all I ever see BATV blocking according to the logs.  I must be missing something. When is that a problem?


    I've had it block much more outgoing legitimate mail than anything else.

    Owner:  Emmanuel Technology Consulting

    http://etc-md.com

    Former Sophos SG(Astaro) advocate/researcher/Silver Partner

    PfSense w/Suricata, ntopng, 

    Other addons to follow

Children
  • 0 in reply to William Warren
    I've had it block much more outgoing legitimate mail than anything else.
    Hi William. Just so I understand, are you saying that when you send email out, recipient mail systems, not knowing what to make of the BATV code, bounce your emails back to you? Or are you saying that your own system blocks them from going out in the first place, for some reason?
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