Honestly, this is the kind of practical thinking that actually helps-timezone matching is one of those tiny details most warmup tools completely ignore. sending artificial opens and clicks at 3am local time is basically screaming "I'm a bot" at the inbox filters. surprised more people don't factor that in.
I've been burning through domains too fast lately, DNS records are my personal nightmare. Always forget one SPF include or misplace a DKIM selector. The monitoring angle sounds like exactly what I'd need.
if there's still a spot going, I'd love to take one of those lifetime inboxes for a spin.