add_spf_record_for_your_vpm_mail []

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====== How to Add an SPF Record For Your VPM Mail ======

===== Email Authentication Considerations for VPM POP Mail accounts =====

If you are using email addresses on your VHOST using ''mkvpm'', for example if your VHOST is "myvhost.com" and you've used 'mkvpm' to create a POP3 email account ''me@vhostcity.net'', you may have noticed that your SMTP mail from the client you've set up quite correctly, when sent to Gmail users, you are getting rejected with a message that looks like the following:

<code>
 ----- The following addresses had permanent fatal errors -----         
 [somebody@gmail.com]
 
    (reason: 550-5.7.26 This mail is unauthenticated, which poses a security risk to the)                       
                                                                                                                 
    ----- Transcript of session follows -----                                                                    
  ... while talking to gmail-smtp-in.l.google.com.:                                                               
  >>> DATA                                                                                                        
  <<< 550-5.7.26 This mail is unauthenticated, which poses a security risk to the                                 
  <<< 550-5.7.26 sender and Gmail users, and has been blocked. The sender must                                    
  <<< 550-5.7.26 authenticate with at least one of SPF or DKIM. For this message,                                 
  <<< 550-5.7.26 DKIM checks did not pass and SPF check for [vhostcity.net] did                                
  <<< 550-5.7.26 not pass with ip: [205.166.94.24]. The sender should visit                                       
  <<< 550-5.7.26  https://support.google.com/mail/answer/81126#authentication for                                 
  <<< 550 5.7.26 instructions on setting up authentication.                                                         17-20020a630611000000b004fb921d0184si10555596pgg.146 - gsmtp                                                    
  554 5.0.0 Service unavailable                                 
</code>

To prevent this, you need need to add a SPF record to your VHOST's //.dns// file so Gmail and other services won't reject your emails as spam.

We want to add a record to the DNS file for your VHOSTed domain that points to whatever the SDF mail server is doing, so the record will point to SDF's SPF record, or if that isn't available, won't either authenticate or say it's spam.

Steps:
  * Edit //$HOME/.dns/yourdomain// to add an spf record
 It will look like the following:

  ;PDNS:205.166.94.20
  ;SDNS:192.67.63.35
                 IN      NS      ns-a.sdf.org.
                 IN      NS      ns-b.sdf.org.
                 IN      NS      ns-c.sdf.org.
                 IN      NS      ns-d.sdf.org.
                 IN      MX      50 mx.sdf.org.
                 IN      A       205.166.94.17
  $ORIGIN vhostcity.net.
  www             IN      CNAME   vhostcity.net.

  * To map to whatever SDF is doing, add a ''TXT'' directive line ''under the '$ORIGIN' line'' that looks like this: ''@ IN TXT "v=spf1 include:mx.sdf.org ~all"''. Now it will look like:

  ;PDNS:205.166.94.20
  ;SDNS:192.67.63.35
                 IN      NS      ns-a.sdf.org.
                 IN      NS      ns-b.sdf.org.
                 IN      NS      ns-c.sdf.org.
                 IN      NS      ns-d.sdf.org.
                 IN      MX      50 mx.sdf.org.
                 IN      A       205.166.94.17
  $ORIGIN vhostcity.net.
  www            IN      CNAME   vhostcity.net.
  @              IN      TXT "v=spf1 include:mx.sdf.org ~all"