RE: Don't Do This: Google's Guide to Keeping Gmail Happy

Google recently published a highly practical new help article: Top 10 Gmail sender issues.Here's how to prevent the most common hurdles you might run into when sending mail to Gmail. Seasoned senders will recognize core pillars like authentication (SPF, DKIM, DMARC) and maintaining a low spam rate (ideally under 0.1%), the guide contains some highly specific, actionable info-nuggets that you'll want to read and memorizeA few quick hits:Granular Guidance on Deferrals: If you experience message delivery deferrals, Google outlines a precise protocol: stop sending for 15 minutes, send a single test message, and if successful, resume at a volume below the initial deferral limit for 24 hours before slowly ramping back up (recommending a daily increase of 25% to 100%).Steady Pacing vs. Bursting: Google explicitly discourages "bursty" traffic. Instead of blasting 60 messages all at once and waiting a minute to blast another 60, they advise pacing your streams consistently—such as sending one…