TOWER
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Cold-email deliverability, on watch

YOUR EMAILS ARE
CLEARED FOR THE INBOX.

One misconfigured DNS record can cost you half your deliverability in two weeks — and you find out last. Tower runs your pre-flight, warms your domain, and watches your reputation on radar. Alerts before the stall, not after.

Run pre-flight — freeHow pre-flight works

SendGrid·Mailgun·Gmail·Custom SMTP

outbound.acme.coon watch since first send
ON WATCH
BOUNCE 0.4%COMPLAINTS 0.02%BLACKLISTS 0/14
30-50%
how much inbox placement a bad SPF/DKIM/DMARC setup costs in two weeks.
16 DAYS
the average gap between a misconfigured record and someone actually noticing.
$0 VISIBILITY
what most senders have into their own reputation until a client asks why replies stopped.
Pre-flight — DNS without the sweat

Three records. Copy-paste ready.

01 · SPF

SPF

The record that says which servers may send as you — copy-paste ready, verified live.

02 · DKIM

DKIM

Signs every message so providers can prove it wasn't forged in transit.

03 · DMARC

DMARC

Tells providers what to do with mail that fails — the record most sends skip entirely.

04 · VERIFY

Verify

Every record checked live against your DNS, not just typed into a form and trusted.

The watch

On watch, hourly.

14 blacklists checked hourly, real inbox placement per provider — not open-rate guessing — and an alert the minute a threshold breaks. You know in minutes.

2 monitors on watch
07:42BOUNCE 2.1% → 3.4% · threshold armed at 3.0% · investigating linkCAUTION
06:15SPF · outbound.acme.co · verified, all mechanisms clear✓
03:00BLACKLIST SCAN · 14 lists · 0 hits✓
Y'dayDMARC · newdomain.acme.co · record missing, mail authenticates against nothingSTALL
Pricing

Validity charges four figures for this.

We charge for a nice dinner.

Free
$0
1 domain · daily checks · no alerts
  • ✓Daily pre-flight status
  • ✓Reputation score, no history
Run pre-flight
Essentials
$19 /mo
1 domain · warm-up · alerts · monthly report
  • ✓Warm-up flight plan, automated
  • ✓Email alerts on threshold breach
Start essentials
Pro
$49 /mo
5 domains · team seats · custom alert rules · Slack
  • ✓Custom alert thresholds per domain
  • ✓Slack + SMS delivery
  • ✓Team seats
Go pro →
Enterprise
$199 /mo
Unlimited domains · white-label · API · SLA
  • ✓White-label dashboard
  • ✓API access + SLA
Talk to us
Before you check in

Questions worth asking.

Stay on radar.

One domain. Thirty minutes. Every record verified, warmed on a schedule, and watched — with an alert before the stall, not after.

Run pre-flight — free