The most common Square email format is {first}@squareup.com (e.g. jane@squareup.com), used in about 71% of observed Square work emails. Square uses 8 address formats in total.
Most likely format — based on 1,995 observed addresses
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Square email formats
71.0% of observed Square addresses use the {first}@ format.
Email formatExampleShare
{first}@squareup.com
Examplejane@squareup.com
Share71.0%
{f}{last}@squareup.com
Examplejdoe@squareup.com
Share13.7%
{last}@squareup.com
Exampledoe@squareup.com
Share6.2%
{first}{l}@squareup.com
Examplejaned@squareup.com
Share4.3%
{first}{last}@squareup.com
Examplejanedoe@squareup.com
Share4.3%
{f}{l}@squareup.com
Examplejd@squareup.com
Share0.4%
{last}{first}@squareup.com
Exampledoejane@squareup.com
Share0.1%
{last}{f}@squareup.com
Exampledoej@squareup.com
Share0.1%
Derived from 1,995 real observed addresses · data refreshed 2026-05-30. Role-based inboxes (info@, sales@, …) are excluded from format detection.
Verify the pattern before you send
Start with the format that appears most often. For Square, that means testing {first}@squareup.com first, then verifying the exact address before it reaches your CRM or sequencer. A pattern can be common and still produce bad guesses when a person uses a nickname, a middle initial, a regional mailbox, or an older alias.
VeriMails checks syntax, MX records, SMTP behavior, disposable domains, and catch-all detection so you can keep valid addresses and skip risky ones. For larger files, credits start at $19 for 10,000 verifications and never expire. Create a free account, test the pattern on a few addresses, then buy more credits only when you need volume. Run the check again before a large campaign if the list is old, because domains change mail routing and people leave.
The most common Square email format is {first}@squareup.com (for example jane@squareup.com), used in about 71% of observed Square work addresses. Square also uses 7 other formats for name collisions.
How accurate is this Square email format?
This format is derived from 1,995 real Square addresses observed across our data, not guessed. To confirm a specific address, use the live verifier above — it checks deliverability in real time.
How do I find and verify a specific person's Square email?
Apply the most common pattern to the person's name (e.g. jane@squareup.com), then verify it on this page — or use the Find tab to get the likely address from their name automatically.
What other email formats does Square use?
Beyond {first}@squareup.com, observed formats include {f}{last}@squareup.com, {last}@squareup.com, {first}{l}@squareup.com, {first}{last}@squareup.com, {f}{l}@squareup.com, {last}{first}@squareup.com, {last}{f}@squareup.com, in descending order of frequency.
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