Nisource Email Format
The most common Nisource email format is {f}{last}@nisource.com (e.g. jdoe@nisource.com), used in about 98% of observed Nisource work emails. Nisource uses 6 address formats in total.
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Nisource email formats
97.6% of observed Nisource addresses use the {f}{last}@ format.
Email formatExampleShare
{f}{last}@nisource.com
Examplejdoe@nisource.com
{first}.{last}@nisource.com
Examplejane.doe@nisource.com
{first}{last}@nisource.com
Examplejanedoe@nisource.com
{f}.{last}@nisource.com
Examplej.doe@nisource.com
{first}@nisource.com
Examplejane@nisource.com
{last}@nisource.com
Exampledoe@nisource.com
About Nisource
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Frequently asked questions
What is Nisource's email format?
The most common Nisource email format is {f}{last}@nisource.com (for example jdoe@nisource.com), used in about 98% of observed Nisource work addresses. Nisource also uses 5 other formats for name collisions.
How accurate is this Nisource email format?
This format is derived from 3,317 real Nisource 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 Nisource email?
Apply the most common pattern to the person's name (e.g. jdoe@nisource.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 Nisource use?
Beyond {f}{last}@nisource.com, observed formats include {first}.{last}@nisource.com, {first}{last}@nisource.com, {f}.{last}@nisource.com, {first}@nisource.com, {last}@nisource.com, in descending order of frequency.
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