Sender Policy Framework (SPF) is an email authentication method designed to detect forging sender addresses during the delivery of the email. SPF allows the receiving mail server to check during mail delivery that a mail claiming to come from a specific domain is submitted by an IP address authorised by that domain's administrators. The list of authorised sending hosts and IP addresses for a domain is published in the DNS
records for that domain.

Setting up SPF

Setting up SPF for your domain will increase deliverability of emails sent via FF.  All that is required is to add the following include to your existing SPF record:

include:_spf.fullfabric.com


Below is an example of a DNS TXT record for SPF. Note the record can contain multiple includes and IP addresses.

yourdomain.com 300 IN TXT "v=spf1 include:_spf.fullfabric.com 12.34.56.78 ~all"


Including _spf.fullfabric.com ensures the latest set of IPs are used when setting up SPF. 

DomainKeys Identified Mail (DKIM) is an email authentication method designed to detect forged sender addresses in emails (email spoofing), a technique often used in phishing and email spam. DKIM allows the receiver to check that an email claimed to have come from a specific domain was indeed authorised by the owner of that domain.

Settings up DKIM for transactional emails via SendGrid

Please add the following entries to your DNS:

Record type: CNAME
Record name: ffpostman.example.com
Record value: u3972838.wl089.sendgrid.net
Record type: CNAME
Record name: s1._domainkey.example.com
Record value: s1.domainkey.u3972838.wl089.sendgrid.net
Record type: CNAME
Record name: s2._domainkey.example.com
Record value: s2.domainkey.u3972838.wl089.sendgrid.net


Setting up DKIM for marketing emails via SendGrid

Please add the following entries to your DNS:

Record type: CNAME
Record name: ffpostoffice.example.com
Record value: u6020615.wl116.sendgrid.net
Record type: CNAME
Record name: s1._domainkey.example.com
Record value: s1.domainkey.u6020615.wl116.sendgrid.net
Record type: CNAME
Record name: s2._domainkey.example.com
Record value: s2.domainkey.u6020615.wl116.sendgrid.net
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