daily new emails: 300 at 30 per inbox per day
inboxes: 10, sending domains: 5 (2 inboxes each)
warmup before full volume: about 21 days; start each inbox at 5-10 a day and add a few per day
monthly new contacts at full volume (22 working days): 6,600
keep the main company domain out of cold sending; use separate domains that point to your real site
