The most common BTC email format is {first}.{last}@btc.bg (e.g. jane.doe@btc.bg), used in about 99% of observed BTC work emails. BTC uses 2 address formats in total.
Most likely format — based on 148 observed addresses
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BTC email formats
99.3% of observed BTC addresses use the {first}.{last}@ format.
Email formatExampleShare
{first}.{last}@btc.bg
Examplejane.doe@btc.bg
Share99.3%
{f}{l}@btc.bg
Examplejd@btc.bg
Share0.7%
Derived from 148 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 BTC, that means testing {first}.{last}@btc.bg 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 BTC email format is {first}.{last}@btc.bg (for example jane.doe@btc.bg), used in about 99% of observed BTC work addresses. BTC also uses 1 other format for name collisions.
How accurate is this BTC email format?
This format is derived from 148 real BTC 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 BTC email?
Apply the most common pattern to the person's name (e.g. jane.doe@btc.bg), 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 BTC use?
Beyond {first}.{last}@btc.bg, observed formats include {f}{l}@btc.bg, in descending order of frequency.
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