See the decay before the crater.
Inbox placement tests, nightly blacklist and DNS checks, and warm-up health checked every hour. Each mailbox gets a health score that drops before your replies do, so you act on the warning, not the damage.
Domains die two weeks before you notice.
By the time bounce rates climb and meeting bookings stall, the placement collapse is already weeks old. Cold-email infrastructure usually tells the truth in casualties, not in advance warnings.
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Spam-folder placement degrades silently for ten to fourteen days before campaign metrics react.
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Blacklist hits often go undetected until a major client flags undelivered mail.
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Warmup vitals are evaluated weekly, if at all. That is far too slow to catch a problem domain before it costs you.
Fleet health
LiveWhat needs you
- kelthorn.com is burned. A new domain is being set up.
- ava@drovexal.com hit spam twice. Resting for 7 days.
- ella@pelmark.com active 96
- noah@novamere.com active 93
- maya@turovix.com active 91
- liam@brixvolt.com warming ··
- ava@drovexal.com paused 71
- owen@kelthorn.com replacing 24
- Spam twice in 2 weeks on clean tests pause until it recovers Live
- Critical blacklist pause sending on that domain Live
- Warm-up score below 97% pause cold sending Live
- New mailbox still warming hold cold sending at 1 a day Live
- Domain stuck 14+ days replace it for you Live
Connect Instantly
Paste one API key so MailNurse can watch your mailboxes.
6 new mailboxes are ready
They are built and warming. Nothing to do but wait 21 days.
Replace owen@kelthorn.com
Its domain is burned. One click orders a fresh one.
Continuous vitals on every sending account.
- 01
Probe.
Every night MailNurse checks your domains against the spam blacklists and checks SPF, DKIM and DMARC. Instantly placement tests show where your email lands at Gmail and Outlook.
- 02
Score.
A composite risk score per account combines placement, warmup curves, bounce velocity, and reputation signals. Trends, not snapshots.
- 03
Surface.
When risk crosses your threshold, you get an alert. When risk crosses the automatic action threshold, Mailnurse acts. You see the warning before deliverability collapses.
The instrument panel for your cold-email infrastructure.
Nightly blacklist checks.
Barracuda, SpamCop, PSBL, Mailspike, SURBL and URIBL, checked every night. A list that does not answer is shown as not checked, never as clean.
Inbox placement testing.
Instantly placement tests send a clean email from your mailboxes to Gmail and Outlook test inboxes and report where it lands: inbox, promotions or spam.
Warmup vitals.
Instantly warm-up scores are read every hour. A mailbox whose score drops is caught the same hour, not the same week.
Composite risk score.
One number per account that fuses placement, blacklists, authentication, bounces, and tenure. Sortable across your whole fleet.
What Mailnurse watches, how often, and why.
Which blacklists does MailNurse check?
How is inbox placement tested?
How often is everything checked?
What's in the composite risk score?
Two disciplines that compound this one.
Auto-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.
Read more 02Auto-rotate 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.
Read moreStop babysitting your inboxes.
MailNurse watches every mailbox and fixes what breaks, so you can spend your time on campaigns that book meetings.
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