| Gmail retired its color-coded Postmaster Tools reputation score right before peak season. In this recap of Mailgun’s Email Deliverability Academy webinar, deliverability experts from Mailgun and Customer.io break down what changed, which signals still matter, and how to decide when to hold, continue, or pull back on Black Friday sending. The post Black Friday sending and reputation monitoring: Deliverability Academy Recap appeared first on Transactional Email API Service For Developers | Mailgun . |