Posts tagged "spf"
2 posts with this tag.
SPF Record Length Limits: The 10 DNS Lookup Rule Explained
SPF records that trigger more than 10 DNS lookups return permerror and break deliverability. Here's why the limit exists, how to count your lookups, and how to fix it.
What is an SPF Softfail? Understanding the ~all Qualifier
SPF softfail (~all) tells receivers an email probably isn't authorised, but to deliver it anyway. Here's what it means, when to use it, and when -all is safer.