Adding SPF Records To ispCP

[Leo51]

I was asked to open a new ticket so I decided to post in "Howto".

Hello, I have a huge problem.

My server IP is being blocked my many major email providers just as Verizon, Hotmail, Yahoo, Google, Gmail and others because emails sent from my server marked as spam since there SPF Record is not setup on my server.

For the last couple of days I have been reading the web, typed various phrases in this forum but is not coming up with a tutorial on how to set this up.

I want to add the SPF record to my server mainly because I do not know which files to edit so I can add the spf statements with the examples that I am reading on how to to setup DK/DKIM (Domainkeys, DKIM and SPF with Postfix on Debian) with the ispCP Omega.

Is there a guide available?

Many Thanks

Fred