Webmail

Email bounced? The non-delivery notice, explained in plain language

The message comes back with a technical text in English, full of codes like 550 5.1.1 User unknown. The person cannot tell whether they mistyped the address, the customer's mailbox is full or the problem is on our side, and opens a ticket. With lua.email, the notice arrives explained.

Signing up is online and activation is automatic: pay by PIX and the account is ready in minutes for you to activate your domain. For questions, we answer on WhatsApp.

Bounce message with the Not delivered to box, the title with the reason, the explanation, What to do and Technical details
A bounced message with the explanation at the top (real screen, fictional data).
  • On all lua.email plans
  • In the browser, nothing to install
  • Support based in Brazil, in Portuguese

What the notice shows

  1. Not delivered to

    The address that did not receive it, right at the top of the message.

  2. What happened, in one sentence

    Address that does not exist, full mailbox, blocked by the destination, message too large, domain that does not receive email.

  3. What to do

    The next step: check the address, send it another way or contact support. A label says which side the problem is on.

  4. Technical details

    The original text stays in the message, for anyone who needs it.

Good to know

  • The explanation is added to the message on delivery: it appears in webmail, in Outlook and on your phone.
  • The bounce subject line also arrives in plain language.
  • For administrators: in the admin panel, message tracking shows each rejected message, with the reason.

Questions about undelivered email explained

What does 550 5.1.1 User unknown mean?

That the destination server does not know that address: usually it was mistyped or no longer exists. With lua.email, the notice already says so in plain language, along with what to do.

Does the explanation show up in Outlook and on my phone?

Yes. The explanation is added to the message on delivery, so it appears in webmail, in Outlook and on your phone.

Do the technical details go away?

No. They stay in the message, for anyone who needs them, such as support.

How does the administrator find out why an email did not arrive?

In the admin panel, Track email shows how each message ended up: delivered, rejected with the reason, bounced or still trying to deliver.

Want this working at your company today?

lua.email costs from R$ 8.90 per mailbox, with webmail and lua Colabora on all plans. Signup is online and activation is automatic: pay by PIX and the account is ready in minutes for you to activate your domain. For questions, we answer on WhatsApp.

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