# Typos in email domains like gmial.com and gmail.co | Dedupely > A typo like gmial.com creates a second contact and a bounced email. How to find duplicates hidden by misspelled email domains, and fix them. - URL: https://dedupe.ly/blog/duplicates/email-domain-typos-duplicates - Section: blog - Published: 2026-11-11 - Site index: https://dedupe.ly/llms.txt - Any page: append `.md` to its URL for this plain-text form --- Skip to content [New Dedupely Intelligence Now on every paid plan, monthly or yearly.](https://dedupe.ly/ai-deduplication) [Blog](https://dedupe.ly/blog) [Duplicates](https://dedupe.ly/blog/duplicates) ## Typos in email domains like gmial.com and gmail.co By [Gaby Salinas](https://www.linkedin.com/in/gbyslns) Updated November 11, 2026 # min read TL;DR - A mistyped domain, like gmial.com or gmail.co, makes a new contact instead of updating the existing one. - Exact email matching treats it as a different address, so the duplicate stays hidden. - A comparison that ignores the domain ending or allows one changed letter finds many of these pairs. - Check a second field, because two real addresses can differ by one letter. - In Dedupely, Similar on email ignores the domain ending, and Typo allowance accepts one changed letter. Someone fills in a form in a hurry and types maria@gmial.com. The form can't find maria@gmail.com, so it creates a new contact. Now Maria has two records, and one of them has an email that bounces every time you send to it. Typos in the domain are among the most common email mistakes. This post covers what they look like, how to find the duplicates they create and when a one-letter difference is a real, separate address. ### What domain typos look like Most domain typos fall into a few patterns: | Pattern | Example | | --- | --- | | Swapped letters | gmial.com, hotmial.com | | Missing letter | gmal.com, outlok.com | | Extra letter | gmaill.com, yahooo.com | | Wrong ending | gmail.co, gmail.con, yahoo.cm | | Missing dot | gmailcom | | Company domains | acmee.com for acme.com | Free email providers get the most typos because so many people use them. Company domains get them too, especially long or unusual ones. ### Why exact matching misses them Exact matching compares the whole address. maria@gmail.com and maria@gmial.com are different strings, so they never pair up. Your CRM's own check, which usually looks for an exact email, doesn't catch them either. That's how the second record got created in the first place. ### How to find them Use a comparison that allows small differences, like a swapped or missing letter, instead of requiring an exact match. That finds most domain typos and local-part typos too ("mraia@" for "maria@"). Then add a second field as a check. Two different real addresses can differ by one character: maria@acme.com and mario@acme.com are probably two people. Requiring the name to agree as well keeps those apart. Example Say a team running webinars matches contacts on email with typos allowed, plus first name. It finds a few hundred pairs, most on gmail.com, hotmail.com and the company's own customers' domains. Two pairs turn out to be colleagues with nearly identical addresses and different first names, which the first-name check keeps apart. ### What to keep when you merge The typo record usually has a bounced or invalid email, so the correct address should win. Check: - **Which email is valid.** Keep the one that delivers. If your CRM marks bounces, use that. - **Which record has the history.** The typo record may hold a recent form submission or event registration. Merging keeps that activity on the surviving record. - **Unsubscribes.** If either record unsubscribed, keep that preference on the merged record. ### Stop new typos at the source Typos come from forms and manual entry. A few changes reduce them: - Ask for the email twice on important forms, or show a "did you mean gmail.com?" suggestion. - Validate the email format at entry. - Watch bounce reports: a cluster of bounces on one misspelled domain points to the form or tool creating them. ### How Dedupely finds email typos In Dedupely, the Similar match option on email ignores capitalization, the domain ending and +tags, so maria@gmail.co and maria@gmail.com pair up. Typo allowance, off by default, accepts one changed, missing or extra letter with Exact or Similar, which catches gmal.com and gmaill.com. A swap like gmial.com changes two letters, so neither catches it: find those with a search on name and phone. Each field gets its own match option, so you can require the first name to match too, which keeps similar addresses from different people apart. Merge Rules include best-email options that keep the strongest value, and a field can send invalid formats to Manual Review instead of merging them. [Find duplicates hidden by email typos](https://v2.app.dedupe.ly/signup) ### One letter, two records A single mistyped letter in a domain is enough to create a duplicate and a bounced email. Exact matching can't see it. A comparison that allows small typos, checked against a name, finds these pairs without merging people whose addresses really are different. Keep the address that delivers, keep the history from both records and fix the forms that let typos in. ### Frequently asked questions #### Why do I have contacts at gmial.com? Someone mistyped gmail.com in a form or a rep typed it by hand. The CRM didn't recognize the address, so it created a new contact instead of updating the existing one. #### Will an exact email search find typo duplicates? No. Exact matching needs the whole address to be identical. Use a comparison that allows small differences. #### Can two real email addresses differ by one letter? Yes, especially at the same company: maria@ and mario@. Add the first name as a second condition so those don't pair up. #### Which email should I keep after merging? The one that delivers. Typo addresses usually bounce, so keep the correct one and the activity from both records. #### How do I stop email typos from creating duplicates? Validate emails at entry, show suggestions for common misspellings and watch bounce reports for misspelled domains. Behind the article ### Gaby Salinas Marketing Assistant at Dedupely Gaby Salinas came to CRM data from marketing and advertising, so she looks at duplicates from two sides: the match and merge logic behind them, and what they do to the people using the CRM, like the rep who calls a customer twice, the admin who gets blamed and the cleanup nobody wants to start. As Marketing Assistant at Dedupely, she follows how RevOps teams, end users, consultants and technical teams actually work with their data: the records they stop trusting, the workarounds they build and the moment they finally decide to clean up. What she finds shapes most of what Dedupely publishes. [Connect with Gaby on LinkedIn](https://www.linkedin.com/in/gbyslns) ### Contact us We’d be happy to help you get this set up. #### Write us a message We probably know the answer to your question already help@dedupe.ly Email copied to your clipboard! [Book a Zoom Whether you’re getting started or getting intense. Get in touch! Book a zoom](https://meetings.dedupe.ly/meetings/gaby-salinas/dedupely-zoom-scheduler) ### Discover Related Blog Posts Stay updated with our latest articles and insights. - [Duplicates How duplicate matching works in a CRM Duplicate matching compares records exactly, by similarity, by sound or across several fields. See what each match type catches and gets wrong. Gaby Salinas October 27, 2026](https://dedupe.ly/blog/duplicates/how-duplicate-matching-works) - [Duplicates How duplicate contacts hurt email deliverability Duplicate contacts mean the same person emailed twice, bounces from old addresses and quiet inboxes, all of which can hurt deliverability. How to fix it. Gaby Salinas October 19, 2026](https://dedupe.ly/blog/duplicates/duplicate-contacts-email-deliverability) - [Duplicates How to match personal and work emails in your CRM One person with a personal email, a work email and an alias becomes several contacts. Match on first and last name plus phone or company instead. Gaby Salinas October 19, 2026](https://dedupe.ly/blog/duplicates/personal-work-email-duplicates) ### Get started for free 20 free trial merges and as much free support as you need to get your duplicates under control. 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