SPF record with five providers
๐ฆ๐ฃ๐ ๐ต๐ฎ๐ ๐ฎ ๐ญ๐ฌ-๐น๐ผ๐ผ๐ธ๐๐ฝ ๐น๐ถ๐บ๐ถ๐
above 10 lookups, the entire SPF check returns permerror
The fix is flattening
resolving nested includes into direct IP ranges
https://dmarcguard.io/tools/spf-flattener/
#DMARC #EmailSecurity #SPF #DNSRecords