Leasons learned from implementing DMARC(SPF/DKIM) on multiple domainsSPF Make sure your SPF records is valid. I have used: https://www.kitterman.com/spf/validate.html - mostly to validate records before…Posted on February 17th, 2019
Debugging 'The message failed SPF checks' when everything looks fineSo the other day we had a customer who complained that they were not able to send us mail because we blocked there emails because of SPF…Posted on January 5th, 2018