What is 11x’s email format?
Format | Example (fictional name: Maya Chen) | Share of known addresses | Status |
|---|---|---|---|
{first}@11x.ai | maya@11x.ai | 5 of 5 staff addresses 11x or its staff published; 91.8% per Prospeo | Current, standard |
{f}.{last}@11x.ai | m.chen@11x.ai | 3.3% per Prospeo | Rare |
{f}{last}@11x.ai | mchen@11x.ai | 3.3% per Prospeo | Rare |
{last}@11x.ai | chen@11x.ai | 1.6% per Prospeo | Rare |
We found five different staff addresses that 11x or its people published themselves between 2023 and August 2026: contacts on its funding announcements (UKTN), a commit in its GitHub organization (GitHub), a package registry entry and a Hacker News hiring post (Hacker News). All five are a bare first name at 11x.ai. The sample is small, but it covers the London and San Francisco years and several teams. Prospeo puts {first} at 91.8% (Prospeo).
A first-name pattern has a catch: two people can’t share an address. If maya@11x.ai bounces, the rarer forms m.chen@ or mchen@ are the next guesses. 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 11x use?
11x.ai: the website and all staff email. Mail runs on Google Workspace, and its DMARC policy is reject with strict alignment (DNS checked Nov 8, 2026).
11x.com redirects to 11x.ai; it isn’t used for staff email, so don’t write to @11x.com addresses.
app.11x.ai is the customer platform, docs.11x.ai the documentation and help center (11x), trust.11x.ai the trust center (11x) and status.11x.ai the status page (11x).
julian.11x.ai hosts the opt-out form for calls from 11x’s voice agents (11x).
11x.io belongs to an unrelated e-commerce consultancy, and 11x.agency to an unrelated sales agency. Neither is 11x.
Why did I get an AI sales email “from 11x”?
Usually you didn’t. 11x sells AI sales agents, and its outbound agent, formerly called Alice, sends cold email on behalf of 11x’s customers (11x). 11x tells customers to send from “a dedicated sending subdomain or a separate domain” rather than their main one (11x), and runs the mailboxes for them: every plan includes “11x Managed Gmail Mailboxes” with domain setup, warm-up and inbox rotation (11x). When a domain’s health drops, 11x “rotates in a warm replacement” (11x).
So an AI-written email about some other company’s product comes from that company’s domain, often a secondary one, not from 11x. Whether the agent says it is an AI is “configured by you”, 11x tells customers (11x). 11x says customers are “solely responsible for their own sales or marketing emails” (11x).
To stop the emails, use the opt-out instructions in the message. 11x also takes opt-outs through its support team (11x), at support@11x.ai, and for phone calls through its opt-out form (11x). Its terms forbid customers from using it for spam or phishing (11x).
Is that email really from 11x?
11x.ai’s DMARC policy is reject, with strict alignment, so mail that fakes an @11x.ai sender should be refused (DNS checked November 8, 2026); look-alike domains are not covered by that. Real 11x staff write from first-name addresses at 11x.ai. 11x hasn’t published any phishing or recruiting-scam warning; its jobs are listed on its Gem careers board (Gem). Its trust center reports SOC 2 Type II (11x).
What is 11x’s official email address?
Need | Where to write | Published on |
|---|---|---|
Customer support | support@11x.ai, with your workspace name | |
Opting out of calls or emails | support@11x.ai, or the opt-out form at julian.11x.ai/opt-out | |
Sales and demos | The demo form; no sales inbox | |
General questions, privacy and data protection | info@11x.ai | |
Press | No press inbox; info@11x.ai is the general address | |
Security vulnerabilities | security@11x.ai; acknowledged within two business days | |
Legal notices | legal@11x.ai, in English | |
Jobs | Apply on 11x’s Gem careers board | |
Postal mail (US) | 11x AI, Inc., 677 Harrison Street, San Francisco, CA 94107 | |
Postal mail (UK) | 11X Limited, Unit 409 Brickfields Workspace, 37 Cremer Street, London E2 8HD |
One trap: in 11x’s privacy policy, a link shown as privacy@11x.ai actually opens an address at 11x.io, another company’s domain (checked November 8, 2026). Type info@11x.ai, the address the same policy gives for its data protection officer (11x).
Which other companies are called 11x?
Several, and data providers mix them up. 11x.io is an e-commerce and growth consultancy; 11x AGENCY (11x.agency) is a sales and RevOps agency; 1X (1x.tech) makes humanoid robots; ElevenLabs makes AI voices; ElevenX Capital is a venture fund; eleven-x makes smart-parking systems. The UK companies 11X Labs Limited and 11X Dev Limited are unrelated too. The AI sales-agent company’s staff addresses end in 11x.ai.
Who owns 11x, its funding and its CEO: 11x in 2026: revenue, valuation, funding, CEO.
