https://help.zoho.com/portal/zh/community/topic/need-guidance-on-spf-flattening-for-zoho-mail-configuration
Need Guidance on SPF Flattening for Zoho Mail Configuration
Hi everyone, I'm hoping to get some advice on optimizing my SPF record for a Zoho Mail setup. I use Zoho Mail along with several other Zoho services, and as a...
need guidancespf flatteningzoho mailconfiguration