The most common First Class Accounts email format is {f}{last}@firstclassaccounts.com (e.g. jdoe@firstclassaccounts.com), used in about 75% of observed First Class Accounts work emails. First Class Accounts uses 3 address formats in total.
Verified format
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First Class Accounts email formats
74.7% of observed First Class Accounts addresses use the {f}{last}@ format.
Email formatExampleShare
{f}{last}@firstclassaccounts.com✓ verified
Examplejdoe@firstclassaccounts.com
Share74.7%
{first}.{last}@firstclassaccounts.com✓ verified
Examplejane.doe@firstclassaccounts.com
Share24.7%
{first}@firstclassaccounts.com
Examplejane@firstclassaccounts.com
Share0.5%
Derived from 194 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 First Class Accounts, that means testing {f}{last}@firstclassaccounts.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 First Class Accounts email format is {f}{last}@firstclassaccounts.com (for example jdoe@firstclassaccounts.com), used in about 75% of observed First Class Accounts work addresses. First Class Accounts also uses 2 other formats for name collisions.
How accurate is this First Class Accounts email format?
This format is derived from 194 real First Class Accounts 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 First Class Accounts email?
Apply the most common pattern to the person's name (e.g. jdoe@firstclassaccounts.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 First Class Accounts use?
Beyond {f}{last}@firstclassaccounts.com, observed formats include {first}.{last}@firstclassaccounts.com, {first}@firstclassaccounts.com, in descending order of frequency.
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