Documentation
Manuals and documentation
Pick the manual for what you want to do. Prefer to search? The search looks through the content of every manual at once.
Scam alert: lua.email never asks for your password or your two-step verification code. If someone asks, it is a scam: do not share it and contact support.
For everyday email users
- Webmail manualSign in, write, search, filters, calendar and contacts, and set up Outlook and your phone.
- lua Colabora manualFiles, documents, chat, video meetings, tasks and notes.
- Apps for WindowsInstall, sign in, use, update and remove lua Colabora, lua Talk, lua Sync and lua Conector on Windows.
For company administrators
- Panel manualDomain, DNS, mailboxes, aliases, service groups, tracking and company users.
- BillingInvoices, payment, licenses and account details. How customers sign in to the billing portal and what they do there.
- Migrate email from another providerTutorial for the migration tool: access data, app password, spreadsheet, preview, progress and syncing.
- Domain onboardingFrom a new domain to the first mailbox, with the TXT record or by bringing your DNS.
- Company logo in webmail and ColaboraThe administrator changes the domain logo in the panel, at no cost.
Domain DNS
- Bring my DNS to LuaChange the name servers at the registrar and email is set up by itself.
- Manage my DNSWhere to see the name servers and how to create, edit and remove records.
For IT teams and partners
- lua BridgeMailboxes on lua.email, Google and Microsoft 365 within the same domain.
- lua ShieldAntispam at the front door of your own mail server: activation, server rule, DNS and training.
- Panel API: integration guideCreate the token, permissions, validity, usage limits and errors, with the ready-made skill for Claude and other AIs.
- Panel API: operations and examplesAll customer profile operations, by area, with curl and Python examples.
Something not working?
See all common problems
- Outlook stays on "Synchronizing subscribed folders" for hours
- The new Outlook does not connect or does not sync your account
- On your phone, use an Exchange account
- I forgot my email password
- Your password is rejected in Outlook or on your phone
- Your phone stopped syncing after a password change
- Access denied outside allowed hours or from another location
- The phone can't find the server
- Calendar or contacts don't show up in your email app
- I sent an email and the recipient says they didn't get it
- A message is missing from your mailbox
- Your two-step verification code is rejected
How to find help in the manuals
Two ways: search for a term, or ask an AI assistant with the lua.email manual at hand.
Search for a term
Use the search field at the top of this page. Type what you want to solve, such as invoice, DKIM or set up on my phone, and the search looks through all the manuals at once.
- The results tell you which manual and which chapter the term appears in.
- When you click a result, the manual opens at the right spot and the term is highlighted in the text.
- On a computer, press the / key to jump straight to the search field.
Prefer to ask an AI assistant?
Every manual also exists as plain text, at the same address with .md at the end. Give the link to the assistant you already use, such as Claude, ChatGPT, Gemini or Copilot, and ask in your own language.
Always use the link, without downloading or attaching a file: through the link the assistant reads the current manual, while a downloaded file goes out of date.
- Webmail manual
- lua Colabora manual
- Panel manual
- Billing (invoices and payment)
- Migrate email from another provider
- Domain onboarding
- Company logo in webmail and Colabora
- Bring my DNS to Lua
- Manage my DNS
- Apps for Windows
- lua Bridge
- lua Shield
- Panel API: integration guide
- Panel API: operations and examples
- Common problems (Outlook, phone, password, email not received)
- Index with all the manuals
A step-by-step example, with Claude
- Open the assistant. With Claude, go to claude.ai. The same goes for ChatGPT, Gemini and Copilot.
- Paste the manual link. Up above, click "Copy link" on the manual for your topic, for example
https://lua.email/docs-billing.md, and paste it into the conversation. To get the list of all the manuals, pastehttps://lua.email/docs.md. - Ask about your case. Write as you would to a person: I have an overdue boleto from lua.email. How do I pay it and get a second copy? Answer using the manual at the link.
- Read the answer. It should come in short steps, with button names as they appear on screen, taken from the manual.
- Check it in the manual. Open the link to the section the answer cites and compare before you act. If it does not cite the section, ask: which section of the manual is this in?
AI assistant (e.g. Claude)
Example of a conversation with an AI assistant.
You paste the link https://lua.email/docs-billing.md and ask: I have an overdue boleto from lua.email. How do I pay it and get a second copy? Answer using the manual at the link.
The assistant answers: 1. Sign in to the billing portal and open "Invoices". 2. Click the number of the overdue invoice: under "How to pay", use the PIX or Boleto tab and the "Copy" button. 3. For a second copy as a PDF, click "Download PDF" on the invoice itself. At the end, the "See in the manual" link leads to the section of the manual.
Another example, this time for setting up email on your phone: copy the webmail manual link, paste it into the conversation and ask How do I set up my company email on my iPhone? Answer using the manual at the link.
Two precautions. The AI can make mistakes: check the answer in the manual and, if that does not solve it, contact support. And never send it your password, your 2FA code or a password link.