RocketReach Email Grades A, A-, B and F: Which Ones to Send To

RocketReach grades each email A, A-, B or F. Its own API FAQ puts A at about 98% (over 99% for personal, over 97% for professional), A- at about 90%, B at 75 to 85%, and says F is invalid and should not be sent to. B and F lookups cost no credits. In practice: send A after a fresh check, verify A- before sending, treat B as unconfirmed, and drop F.

The grades and percentages below are from RocketReach's API FAQ (updated 17 June 2026, read 2 November 2026). They're RocketReach's own estimates. The FAQ doesn't say how they're measured.

The grades, and what to do with each

Grade	RocketReach's estimate	Credits	What to do
A	About 98% (personal over 99%, professional over 97%)	Charged	Main campaign, after a check on old exports
A-	About 90%	Charged	Verify, then send the valid ones
B	75 to 85%	Not charged	Verify; send valid ones, hold risky ones apart
F	Invalid	Not charged	Don't send

One credit rule matters for the plan: a Premium credit covers an A or A- email or a valid phone, a Standard credit an A or A- email only, and a lookup with only B or F emails costs nothing. You're only paying for the grades RocketReach stands behind.

Why B is where an outside check matters most

At RocketReach's own estimate, 15 to 25% of B emails won't work. In a 1,000-row B segment that's 150 to 250 addresses that could bounce, which is enough to push a campaign over most sequencers' pause thresholds. Our bounce rate thresholds by platform post lists them.

The FAQ doesn't say what makes an email a B. One common reason any finder can't confirm an address is a catch-all domain, where the server accepts every address. A verifier tells you whether that's the case. Our catch-all leads in sequences post covers what to do with them.

Split an export by grade before it reaches your sequencer

1. Export the list. Save the profiles to a list and export it as CSV. Keep the email grade column if your export includes it; if not, note which rows came from B lookups.
2. Clean the file. The RocketReach export tool pulls one email per row and drops duplicates in your browser.
3. Remove F rows. Don't verify them; RocketReach already says they're invalid.
4. Verify A-, B and any A rows older than a month. Upload them at /verify. Valid, risky and invalid download as separate files.
5. Build two batches. Valid addresses go into the main campaign. Risky addresses, mostly catch-all, go into a smaller batch on a separate schedule, or stay out.
6. Re-check before every relaunch. A grade, or a check, describes one day.

What a grade doesn't tell you

• Whether the person is still there. A mailbox can stay open for months after someone leaves. See B2B contact data decay.
• Whether it's a role inbox. info@ and sales@ can be graded A and still be a poor cold target. See role-based email addresses.
• How your domain will be treated. A clean list doesn't fix authentication or volume.

For a side-by-side of verifiers that take a RocketReach export, see the best email verifier for RocketReach page.

Where SimpleVerifier fits

SimpleVerifier checks the addresses in your RocketReach export and labels each valid, risky (with the reason, such as catch-all) or invalid. The first 100 checks are free with a Google sign-in on the verify page. Pro is $39 a month with the first 100,000 checks a month at full speed, then slower, never cut off. One-time packs of 10,000 checks for $15 never expire (CSV only). See pricing.