Seven disciplines, one watchful instrument.
Mailnurse is one product that covers the seven ways cold-email programs quietly fail. Each discipline can be adopted alone; together they replace the playbook that lives in your head.
Nine ways MailNurse keeps your cold email landing.
Each feature targets a specific reason emails stop reaching the inbox. Together, they keep your whole setup healthy.
Health monitoring
Constant inbox-placement tests, blacklist checks, and warmup vitals, rolled into one health score per account, so you see trouble coming before it hurts.
Learn moreMailbox rotation
Groups of mailboxes take turns sending while the rest recover with warm-up running. Your domains last longer and stay out of spam.
Learn moreAuto-pause spam
When a mailbox lands in spam, a blacklist hits, or warm-up health drops, MailNurse pauses it before the damage spreads, and brings it back once it recovers.
Learn moreReplace burned domains
When a domain burns out, Mailnurse replaces it end to end and starts warmup. The ten-hour job, done for you while you sleep.
Learn moreAuto-replace mailbox
When a single mailbox burns out, Mailnurse retires it and drops in a ready-made persona, with name, photo, and identity, from a pre-warmed pool.
Learn moreAI copywriter
When a sequence stops landing, Mailnurse writes a fresh one: full multi-step copy, spam-checked against 360+ triggers, and ready to push to Instantly.
Learn moreBlacklist and DNS checks
Every night MailNurse checks your domains against the spam blacklists and checks SPF, DKIM and DMARC. Anything wrong shows up in Action Items the next morning.
Learn moreAuto-placement
Mailnurse runs proven warmup schedules, adjusts send volume to engagement, and re-tests placement every night, so your inbox rate stays high on its own.
Learn moreAgency plan
Run cold email for clients? Bring your own Google Workspace and registrar, and pay $2.50 per mailbox instead of $3.
Learn moreStop babysitting your inboxes.
MailNurse watches every mailbox and fixes what breaks, so you can spend your time on campaigns that book meetings.
14 days of Pro free · No card needed · Free plan after