The most common GLS email format is {first}@gls-holding.com (e.g. jane@gls-holding.com), used in about 85% of observed GLS work emails. GLS uses 4 address formats in total.
Most likely format — based on 1,067 observed addresses
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GLS email formats
84.8% of observed GLS addresses use the {first}@ format.
Email formatExampleShare
{first}@gls-holding.com
Examplejane@gls-holding.com
Share84.8%
{first}.{last}@gls-holding.com
Examplejane.doe@gls-holding.com
Share14.2%
{last}@gls-holding.com
Exampledoe@gls-holding.com
Share0.7%
{first}_{last}@gls-holding.com
Examplejane_doe@gls-holding.com
Share0.4%
Derived from 1,067 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 GLS, that means testing {first}@gls-holding.com 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 GLS email format is {first}@gls-holding.com (for example jane@gls-holding.com), used in about 85% of observed GLS work addresses. GLS also uses 3 other formats for name collisions.
How accurate is this GLS email format?
This format is derived from 1,067 real GLS 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 GLS email?
Apply the most common pattern to the person's name (e.g. jane@gls-holding.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 GLS use?
Beyond {first}@gls-holding.com, observed formats include {first}.{last}@gls-holding.com, {last}@gls-holding.com, {first}_{last}@gls-holding.com, in descending order of frequency.
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