The most common Signal email format is {f}{last}@signal.co (e.g. jdoe@signal.co), used in about 98% of observed Signal work emails. Signal uses 2 address formats in total.
Most likely format — based on 166 observed addresses
Find anyone’s Signal email
Enter a name — Signal’s email pattern is in our data, so we can find the address. Start free to reveal & verify it.
Full finder is 20 credits · verification is 1 credit. Powered by the VeriMails engine.
Signal email formats
98.2% of observed Signal addresses use the {f}{last}@ format.
Email formatExampleShare
{f}{last}@signal.co
Examplejdoe@signal.co
Share98.2%
{first}@signal.co
Examplejane@signal.co
Share1.8%
Derived from 166 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 Signal, that means testing {f}{last}@signal.co 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 Signal email format is {f}{last}@signal.co (for example jdoe@signal.co), used in about 98% of observed Signal work addresses. Signal also uses 1 other format for name collisions.
How accurate is this Signal email format?
This format is derived from 166 real Signal 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 Signal email?
Apply the most common pattern to the person's name (e.g. jdoe@signal.co), 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 Signal use?
Beyond {f}{last}@signal.co, observed formats include {first}@signal.co, in descending order of frequency.
Was this helpful?
Find and verify work emails at any company
Build a verified prospect list one company at a time — find the right address, confirm it’s deliverable, then reach out with confidence.