Email Delivery Troubleshooting

2 guides covering email delivery troubleshooting on the Sparkforge platform.

• Email Sending Health: Maintaining Great Rates & Recovering When Things Go Wrong Inbox providers judge your sending on three metrics: bounce rate (under 2%), spam complaint rate (under 0.1%), and open rate (above 15%). Keep them healthy or f
• Gmail Error: 4.7.28 – Unusual Rate of Unsolicited Mail Detected Gmail error 4.7.28 is a temporary rate limit triggered by a sending spike or low engagement, not a permanent IP block. Reduce volume to Gmail addresses, send on