The most common Efca email format is {first}.{last}@efca.org (e.g. jane.doe@efca.org), used in about 70% of observed Efca work emails. Efca uses 2 address formats in total.
Verified format
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Efca email formats
69.9% of observed Efca addresses use the {first}.{last}@ format.
Email formatExampleShare
{first}.{last}@efca.org✓ verified
Examplejane.doe@efca.org
Share69.9%
{f}{last}@efca.org
Examplejdoe@efca.org
Share30.1%
Derived from 309 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 Efca, that means testing {first}.{last}@efca.org 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 Efca email format is {first}.{last}@efca.org (for example jane.doe@efca.org), used in about 70% of observed Efca work addresses. Efca also uses 1 other format for name collisions.
How accurate is this Efca email format?
This format is derived from 309 real Efca 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 Efca email?
Apply the most common pattern to the person's name (e.g. jane.doe@efca.org), 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 Efca use?
Beyond {first}.{last}@efca.org, observed formats include {f}{last}@efca.org, in descending order of frequency.
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