Email verification: catch bad addresses before you send
- anjali@chaipoint.exampleValid
- info@kiteandco.exampleRisky· Role address
- rahul@gmial.comDid you mean rahul@gmail.com?Risky· Possible typo
- meera@mailinator.comInvalid· Throwaway
- tom@oldstudio.exampleInvalid· No mail server
What it does
Valid, risky or invalid
Every checked contact gets one of three results, with the reason in plain words, such as “Invalid · No mail server” or “Risky · Role address”.
Domains that take no mail
Fusomail asks DNS whether each address’s domain accepts email. An address at a domain without a mail server would only bounce.
Typos spotted
gmial.com or yaho.com look like slips for big providers’ domains. Fusomail marks them and suggests the likely address.
Throwaway addresses
Addresses at disposable-email services (more than 800 are listed, with their subdomains) are marked invalid: mail to them is wasted.
Role addresses
info@, sales@ or noreply@ often reach a shared inbox or a ticket system and are marked as spam more. They are risky, not invalid: you decide.
Your choice per campaign
When you launch, invalid addresses are left out unless you keep them, and you can leave out risky ones too. Contacts never checked are always kept.
How it works
- 1
Import your list and choose “Verify these contacts”, or verify any list from the Contacts page.
- 2
Fusomail checks the addresses in the background; results fill in as it goes.
- 3
Filter by Valid, Risky or Invalid, and fix or remove what needs it.
- 4
At launch, choose whether invalid and risky addresses are left out of the campaign.
Questions about email verification
How does Fusomail check an address?
It looks at the address itself, whether it is a role address or a throwaway service, whether the domain looks like a typo of a big provider’s, and asks DNS whether the domain accepts email. It never sends anything to the address and never connects to the person’s mail server (SMTP probing), which can harm your reputation.
Does verification guarantee an email won’t bounce?
No. A mailbox can be full or closed even when its domain accepts email; only the receiving server knows. Verification removes the addresses that are certain or likely to fail.
Is my list sent to another company to be checked?
No. The checks run on Fusomail’s own servers; only each address’s domain is looked up in DNS, as any mail server does before delivering.
Which plans include email verification?
Starter and up (Starter, Premium and Pro). On the Free plan, imported addresses are still checked for ones that cannot work, such as addresses without an @.
See what each plan includes on the pricing page, or read every question.
Works well with
CSV and Excel import
Upload a CSV or Excel (.xlsx) file, match its columns and send a mail merge from Gmail. No Google Sheets needed. Duplicates merged, opt-outs kept.
Learn moreDeliverability check
Check your domain’s SPF, DKIM and DMARC and your email’s spam words, links and images before sending, with a score and plain fixes.
Learn moreUnsubscribe and suppression
One-click unsubscribe (with the List-Unsubscribe header Gmail expects) and a suppression list that every future campaign skips.
Learn more
Free tools and guides
Send your first campaign this week
Start on the Free plan. No card needed, and nothing is sent until you press Send.
Start freePrefer a walkthrough first?
Leave your number and we will call and show you around. Outside India? Write to hello@fusomail.com.