The most common California Institute of Technology email format is {last}@alumni.caltech.edu (e.g. doe@alumni.caltech.edu), used in about 34% of observed California Institute of Technology work emails. California Institute of Technology uses 8 address formats in total.
Most likely format — based on 112 observed addresses
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California Institute of Technology email formats
33.9% of observed California Institute of Technology addresses use the {last}@ format.
Email formatExampleShare
{last}@alumni.caltech.edu
Exampledoe@alumni.caltech.edu
Share33.9%
{f}{last}@alumni.caltech.edu
Examplejdoe@alumni.caltech.edu
Share27.7%
{first}@alumni.caltech.edu
Examplejane@alumni.caltech.edu
Share26.8%
{first}{last}@alumni.caltech.edu
Examplejanedoe@alumni.caltech.edu
Share4.5%
{first}.{last}@alumni.caltech.edu
Examplejane.doe@alumni.caltech.edu
Share2.7%
{first}{l}@alumni.caltech.edu
Examplejaned@alumni.caltech.edu
Share2.7%
{first}_{last}@alumni.caltech.edu
Examplejane_doe@alumni.caltech.edu
Share0.9%
{f}{l}@alumni.caltech.edu
Examplejd@alumni.caltech.edu
Share0.9%
Derived from 112 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 California Institute of Technology, that means testing {last}@alumni.caltech.edu 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.
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What is California Institute of Technology's email format?
The most common California Institute of Technology email format is {last}@alumni.caltech.edu (for example doe@alumni.caltech.edu), used in about 34% of observed California Institute of Technology work addresses. California Institute of Technology also uses 7 other formats for name collisions.
How accurate is this California Institute of Technology email format?
This format is derived from 112 real California Institute of Technology 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 California Institute of Technology email?
Apply the most common pattern to the person's name (e.g. doe@alumni.caltech.edu), 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 California Institute of Technology use?
Beyond {last}@alumni.caltech.edu, observed formats include {f}{last}@alumni.caltech.edu, {first}@alumni.caltech.edu, {first}{last}@alumni.caltech.edu, {first}.{last}@alumni.caltech.edu, {first}{l}@alumni.caltech.edu, {first}_{last}@alumni.caltech.edu, {f}{l}@alumni.caltech.edu, in descending order of frequency.
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