Reveal and remove risky B2B emails before you send

Cold outreach often fails because bad or hidden emails hurt your sender reputation.

Allegrow scans your B2B lists and flags risky or invalid contacts that many tools miss.

It handles tricky catch-all domains by identifying which contacts within them are safe to email—and which should be avoided.

The platform also detects spam traps, silent bounces, and invalid inboxes before they damage your deliverability.

With unlimited verification options and fixed pricing on AppSumo, revalidating your lists doesn’t mean extra costs.

Teams using Allegrow report fewer bounces, better reply rates, and fewer deliverability issues—like one user who saw bounce rates drop 52% and replies go up 80%.

There’s also real-time risk analysis, team health scores, sender-reputation dashboards, and CRM integrations in higher tiers—so you can catch problems before they’re sent.

Overall, Allegrow gives B2B teams more confidence that their emails reach the inbox—not the spam folder.

Key Features

Verifies catch-all email addresses to identify valid targets

Detects spam traps, dead emails, and silent bounces

Proprietary, multi-method validation beyond SMTP checks

Fixed-fee lifetime pricing for unlimited verification credits

Real-time deliverability dashboards, team scoring, and integrations (in advanced plans)