Set up SPF Records

Your service provider is now using MailChannels Outbound Filtering to send email from the hosting server on which your account is located. Correct Sender Policy Framework (SPF) records need to be configured in your DNS settings to ensure that Internet receivers will properly identify and receive your email. This article describes the DNS records you must add.

DNS Records

The following records are needed for SPF to work correctly. Replace example.com with your own domain name:

Location	Type	Value
example.com	TXT	v=spf1 a mx include:relay.mailchannels.net  ?all

If you already have an SPF record, simply add include:relay.mailchannels.net to this entry. Make sure to add it BEFORE the “all” mechanism as “all” always matches and typically goes at the end of the SPF record.

Note: DKIM keys can be added for Cpanel using our Cpanel - DKIM Configuration Guide.

For cPanel users

cPanel has made available a script "spf_install" to add spf records. The "spf_install" script allows you to add SPF records to all the user's domains' zone files from the command line.

 

Reference:

https://documentation.cpanel.net/display/68Docs/The+spf_installer+Script

http://thecpaneladmin.com/installing-domainkeys-spf-records/

 

Here is simple script with which you can add spf records on all cPanel account or on multiple account.

cd /var/cpanel/users
for i in `ls /var/cpanel/users` ;do /usr/local/cpanel/bin/spf_installer $i ;done

Note: Please test this thoroughly before implementing this on production servers