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Website DNS, TXT/SPF files question

Hey,

I know this probably isn’t the best place to ask this as SPF files are records and just in the DNS but I thought i’d give it a shot and maybe have better luck than I’ve had from Email support.

In my DNS I had 1 original file:

“v=spf1 include:spf.protection.outlook.com -all”

and needed to add in an SPF file for Benchmark Mail service.

“v=spf1 a mx include:bmsend.com ~all”

After realizing you cannot have two SPF files I merged them as

“v=spf1 a mx include:bmsend.com include:spf.protection.outlook.com -all”

Keeping “-all” and leaving “a mx” as the prefix.

I am still having an issue with deliverable newsletters.

and noticed that our “MX” file is “company-com.mail.protection.outlook.com”

My questions are

1: “-all” “~all” or “?all” would this interfere with being deliverable? 2: is it proper to add in the “a MX” prefix from the newer SPF? 3: Is the “a MX” and “-all” interfering with each other?

submitted by /u/The_Earnest_Crow
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