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Is it a requirement to support verify of email senders?

Discussion in 'E-mail Discussion' started by aarondwyer, Feb 25, 2007.

  1. aarondwyer

    aarondwyer Well-Known Member

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    Hi

    I have setup on one of my cPanel servers to "Verify the existence of email senders".

    This has resulted in the reduction of a heap of spam, but some other servers don't support this checking of email addresses.

    I have had to setup a whitelist in Exim with those domains that contact me letting me know that they can't send emails to my server.

    Is there a requirement or common practice to have servers enabled to allow verification. ?

    More importantly I need to know how do you enable or disable the cPanel server to respond to the verifying of email addresses.?

    Thanks
    Aaron
     
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  2. MMarko

    MMarko Well-Known Member

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    Check Exim configuration. There is option to disable this.
     
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  3. jayh38

    jayh38 Well-Known Member

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    Verify senders is for your local server to verify clients exist and are authorized to send mail. Are you allowing other servers to relay through you as a mx service?
     
  4. aarondwyer

    aarondwyer Well-Known Member

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    Thanks for that, but I think I mentioned the wrong option.

    This sort of thing is showing up in my exim_mainlog from a valid external email isn't getting through to a valid local email box.

    2007-02-25 20:40:29 H=(marvin.ipnetworks.net.au) [203.132.64.12] F=<pigeonhole1@
    lagunacom.com.au> temporarily rejected RCPT <aarond@websmartcentral.com>: Could
    not complete sender verify callout

    Since I have this ticked on my servers.

    Use callouts to verify the existence of email senders.

    And some servers do not comply with allow you to verify if it's a real email address. I thought this was a standard.??

    Also how do I enable / disable whether the server accepts these callouts.

    I know my server is asking for them, but I don't think it is giving them out to other servers.

    Thanks
    Aaron
     
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