Cos Email Format
The most common Cos email format is {first}.{last}@cosstores.com (e.g. jane.doe@cosstores.com), used in about 100% of observed Cos work emails. Cos uses 2 address formats in total.
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Cos email formats
99.9% of observed Cos addresses use the {first}.{last}@ format, the most common pattern among security and investigations companies.
Email formatExampleShare
{first}.{last}@cosstores.com
Examplejane.doe@cosstores.com
{f}.{last}@cosstores.com
Examplej.doe@cosstores.com
About Cos
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Industry
security and investigations
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Frequently asked questions
What is Cos's email format?
The most common Cos email format is {first}.{last}@cosstores.com (for example jane.doe@cosstores.com), used in about 100% of observed Cos work addresses. Cos also uses 1 other format for name collisions.
How accurate is this Cos email format?
This format is derived from 1,179 real Cos 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 Cos email?
Apply the most common pattern to the person's name (e.g. jane.doe@cosstores.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 Cos use?
Beyond {first}.{last}@cosstores.com, observed formats include {f}.{last}@cosstores.com, in descending order of frequency.
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