Klaviyo Email Format

What is Klaviyo’s email format?

Klaviyo publishes its SDKs and integrations on GitHub (GitHub), and the commits in those repositories carry the authors’ work addresses. Of the 66 personal klaviyo.com addresses we found there on November 8, 2026, across 47 repositories and commits from 2012 to 2026, 63 follow {first}.{last}. The rest are one bare first name, one short form and one contractor address. The sample leans toward engineers, but the pattern hasn’t changed since Klaviyo’s first years.

Data vendors agree. LeadIQ puts {first}.{last} at 89% (LeadIQ), Prospeo at 90.3% (Prospeo), and Clay names it as the format (Clay).

Nicknames are the main trap. Several staff who go by Dan, Ben or Al have daniel., benjamin. or alexander. addresses, while others use the short form. Try the full first name first. Either way, a pattern-based address is a guess: run it through an email verifier before you send, because a bounce hurts your sender reputation.

Which domains does Klaviyo use?

Klaviyo’s own staff and account email uses one domain. Its platform, which sends marketing email for brands, uses several more, and those are the ones most people see.

• klaviyo.com: the website, staff email and Klaviyo’s own account emails. Mail runs on Google Workspace, and its DMARC policy is reject, so mail that fakes a klaviyo.com sender should be refused (DNS checked Nov 8, 2026).

• klaviyomail.com: the shared domain brands send from until they set up their own. Gmail then shows the sender “via klaviyomail.com” (Klaviyo). Its links can start trk.klaviyomail.com (Klaviyo).

• klclick.com: click tracking in brands’ emails, as trk.klclick.com (Klaviyo). Numbered variants such as klclick3.com are Klaviyo’s too (Trustwave).

• klaviyoservice.com: replies from a brand’s customer service, when the brand runs it on Klaviyo without its own domain, e.g. support@yourbusiness-a1b2c3.klaviyoservice.com (Klaviyo).

• kmail-lists.com: brands’ subscribe and unsubscribe forms, at manage.kmail-lists.com (Klaviyo). klaviyodns.com holds the DNS records brands point their sending domains at (Klaviyo).

• guide.klaviyo.com: some recruiting emails come from it (Klaviyo).

• help.klaviyo.com, developers.klaviyo.com, community.klaviyo.com, status.klaviyo.com and trust.klaviyo.com: help center, developer docs, forum, status page and trust center.

• klaviyomail.net, klaviyoemail.com, klaviyo-mail.com and klaviyo.co are not Klaviyo’s official domains; most are parked or for sale (checked Nov 8, 2026).

Why did I get an email from Klaviyo?

Almost certainly you got a brand’s marketing email, sent through Klaviyo. Klaviyo is the email and SMS platform behind more than 211,000 brands (SEC), and brands that haven’t set up their own sending domain send “via klaviyomail.com” (Klaviyo). The brand, not Klaviyo, owns your subscription: Klaviyo processes the data “on behalf and under the instruction of the respective customer” (Klaviyo).

To stop the emails, use the unsubscribe link in the email, which brands add from Klaviyo’s templates (Klaviyo). If you never signed up, or the email looks like a scam, forward it to abuse@klaviyo.com (Klaviyo): Klaviyo can disable accounts that send spam (Klaviyo).

Is that email really from Klaviyo?

Klaviyo says scammers fake its senders with addresses such as klaviyo-support@gmail.com, and that if a message asks you to sign in, you should type www.klaviyo.com into your browser instead of clicking (Klaviyo). A brand’s email can carry Klaviyo tracking links, so “a link’s domain alone does not prove that a message is safe” (Klaviyo). Klaviyo’s own account emails come from klaviyo.com, such as no-reply@klaviyo.com for device verification (Klaviyo), and its staff never start a password reset on your behalf (Klaviyo).

There is history here. In August 2022 an attacker used a Klaviyo employee’s stolen login to reach internal support tools and download list data from 38 customer accounts, mostly crypto companies, and Klaviyo warned of “phishing campaigns and look alike websites” (Klaviyo). In 2025 Trustwave found phishing emails that routed their links through Klaviyo’s klclick3.com tracking domain (Trustwave). Forward suspicious mail to abuse@klaviyo.com, with the headers (Klaviyo); Klaviyo’s security page also lists reportphishing@klaviyo.com (Klaviyo).

Job offers are a common scam. Klaviyo recruiters “will only contact candidates from an @klaviyo.com email address”, never use WhatsApp and never ask for fees (Klaviyo); report fakes to abuse@klaviyo.com with the subject “Recruitment Fraud” (Klaviyo).

What is Klaviyo’s official email address?

Which other companies have similar names?

Klevio, a UK smart-lock company (klevio.com), and Klavi, a Brazilian open-finance company, are unrelated. Many marketing agencies put “Klaviyo” in their names because they are Klaviyo partners; their staff don’t have klaviyo.com addresses.

Who owns Klaviyo, its revenue and its co-CEOs: Klaviyo in 2026: revenue, valuation, funding, CEO.