Try this on day one: check a customer email
“Check this customer’s email address and its domain before I add it to my contacts.”
- Email verification result
- Domain validation result
Integrations · Email and newsletters
An AI team that works in Mailcheck for you.
Your bots check email addresses and validate their domains before you use them in customer lists. New bots start on Ask, so they check with you before they act in Mailcheck, except on Hermes and other ACP engines.
Mailcheck connects through Flux Router credits or your own connected-apps key. You sign in to Mailcheck yourself.
Check this customer’s email address and its domain before I add it to my contacts.
You signed in to Mailcheck once. Your Chief put a bot on it.
- Validate an email domain
- Verify an email address
What your bots can do in Mailcheck.
- Validate an email domain
- Verify an email address
“Asks first” means the bot checks with you before it does that, on Ask, the mode every new bot starts in. You can give a bot more freedom later. On Full access, a bot stops before messaging anyone new, posting publicly, paying, or deleting outside its folder, unless you have allowed it for that task. On Hermes and other ACP engines, Ask and the stop line cover only what the engine asks Murage about, and Hermes doesn’t ask before connected-app tools, so these actions don’t ask first there.
About Mailcheck.
Mailcheck, now part of UserCheck, is an email and domain checking service. It spots disposable and fake addresses, checks mail servers, suggests fixes for common typos and flags role accounts such as support@. Teams use it on signups and imported lists.
More jobs to hand your team in Mailcheck.
Screen new signups
“Verify the email addresses in this CSV and add the results to a Google Sheet.”
- Result for each address
- Disposable or odd-looking addresses flagged
- Clean count
Check a lead's domain
“Validate the domain of this lead's email before I reach out.”
- Domain result
- Plain note on whether it looks real
- Draft email in Gmail if you want one, nothing sent
Tips for good results in Mailcheck.
- Check a small batch first and compare the results with what you know.
- Role accounts like info@ may be fine for businesses, so decide by case.
- Keep your original list and add the results in new columns.
No ready-made team yet? Ask for one.
Tell your Chief of Staff what you want done in Mailcheck, in plain words. It builds a team for the job, starting from the closest one in the library, and shows you who is on it before anyone starts.
How to connect it.
- 1
Download Murage
For Mac, Windows and Linux. Pick the AI you already use; if it needs installing, Murage opens a one-line command for you.
- 2
Connect Mailcheck
Open connected apps and sign in to Mailcheck once. It runs through Flux Router credits, or your own connected-apps key.
- 3
Give a brief
Tell your Chief of Staff what to do with Mailcheck. New bots start on Ask, so they check with you before they act, except on Hermes and other ACP engines.
What a Murage team adds in Mailcheck.
What a team adds here
Your team reads your contact list, checks each address and domain, and reports back which ones look good and which need a second look.
Works across your apps
One brief can pull from Mailcheck, your calendar, your CRM and the web, then hand you one answer.
Keeps notes on your business
Your bots keep notes on your customers, your tone and how you like things done, stored on your computer where you can open and edit them.
Runs on the AI you already pay for
Fuigo (built in), Claude Code, Codex, Hermes, a model key or a local model. Your AI provider bills you as usual.
Questions about Murage and Mailcheck.
Does it send a test email?
Your bots verify addresses and domains through the service. They do not email your contacts.
Can it fix typos for me?
It can report results. You decide what to change in your list.
Can Murage connect to Mailcheck?
Yes. Sign in to Mailcheck once inside Murage, through Flux Router credits or your own connected-apps key, and your bots can validate an email domain.
Will it change or send anything in Mailcheck without asking?
Not while it’s on Ask, where every new bot starts: it checks with you before it acts in Mailcheck. On Auto or Full access, replies in an existing conversation and routine edits go ahead, but a bot still stops before messaging anyone new, posting publicly, paying, or deleting outside its folder, unless you have allowed it for that task. Only No limits turns that off. On Hermes and other ACP engines, Ask and the stop line cover only what the engine asks Murage about, and Hermes doesn’t ask before connected-app tools.
What does it cost?
Mailcheck connects through Flux Router credits, or your own connected-apps key if you have one. Your AI provider bills you as usual.
More email and newsletters apps.
Not seeing what you need? Your bot can work with any public API or MCP server.
Mailcheck and the other product names and logos on this page are trademarks of their respective owners. Murage is not affiliated with or endorsed by them; the names and logos are used only to identify the apps and engines Murage works with.
Give your first job to Murage.
Download the app, connect the AI you already pay for, and tell your Chief of Staff what needs doing. Plan on about ten minutes from install to a working team.
No account needed · Runs on the AI plan you already pay for