We recently have a customer from FortySevenInc with domain fortyseveninc.com. When our employees from domain synthego.com sent the email to that customer, he did not receive email and there was error from his end.
We talked to IT from Forty Seven Inc and they said problem was from our SPF records. I currently check and we have about few SPF records. I want to combine those records but do not have experience with it. Here are our records
I just took over IT so I prefer to keep all those records and combine them into 1. Also if we have to modify anything to deliver message to fortyseveninc domain that will be great.