Sending from Subdomains: A Strategic Guide to Domain Architecture
How to architect email subdomains for reputation isolation. The 4-stream model, naming conventions, and why [send.brand.com] beats [mail.brand.com].
#Subdomains
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Why Your Transactional Emails Are Landing in Spam (And Mixing Them with Marketing Is The Reason)
Password resets going to spam? You're sending them from the same IP and domain as marketing campaigns. The four operational fixes that actually work.