Sender ID Framework SPF Record Wizard

Discussion in 'DNS Server' started by Phil, Jun 25, 2005.

  1. I whole heartedly agree and am bowing out of this thread...

    Ace Fekay [MVP], Jun 30, 2005
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  2. I agree with you as well Herb. He got his answer, no matter how we tried to
    explain, and re-explain, and it still was not sinking in, and he still kept
    on digging.

    I try to help folks, as well as all of us out here, and we all do this
    pro-bono, with the only satisfaction with helping someone is that they're
    problems are solved or a pointer to help them elsewhere. But some folks come
    back and just trash you and/or the company they are asking help from. It
    fathoms me sometimes ....

    As Jason said, a consultant may be Phil's better alternative.

    And I hope Andrew reads my apology...

    I'm done with this thread...

    Ace Fekay [MVP], Jun 30, 2005
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  3. In
    As far as your complaint about the site not working with an obsolete browser
    like IE5, I cannot help. Upgrade your browser or install some other browser,
    or send me your mail server host name, the MX records you have, the IP
    addresses yout SMTP server sends email from, I will write you a sample SPF
    record to where you only need to substitute the different SMTP servers and
    IP addresses for different domain.

    OR you can just take a look at one of my domains and make your own
    substitutions and paste it to a TXT record. TXT v=spf1 ip4: mx ~all

    Plus one of these for each mail server host name: TXT v=spf1 a -all

    SPF is really pretty simple to implement for each domain, especially if all
    domains use the same SMTP servers. If all domains use the same SMTP servers
    you can copy the same text to the TXT record in all zones. I host ten
    domains on three SMTP servers and all SPF records are virtually identical.

    This record does not protect Microsoft, it protects you. If you have an SPF
    record for an Email domain, any SMTP server that checks SPF will check the
    SPF record to verify that the SMTP server sending mail from one of your
    domains is authorised to send mail for your domain. IF hotmail and MSN are
    checking SPF and you don't have an SPF it may be considered junk mail. If
    you have an SPF record and the mail is from an authorised SMTP server it is
    good. The question I have is if the mail is not from your authorised SMTP
    server what happens to the mail?
    I can tell you if a piece of mail has one of your domains, but doesn't come
    from an authorised SMTP server, my mail servers will reject it as
    unauthorised to send mail from your domain.

    I've taken it a step further by rejecting virtually all relayed email.

    Best regards,
    Kevin D4 Dad Goodknecht Sr. [MVP]
    Hope This Helps
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    Kevin D. Goodknecht Sr. [MVP], Jul 2, 2005
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