Email setup · Works if your provider allows password sending.

Connect any email account to Revnio (SMTP settings)

If Revnio does not recognize your provider, enter the mailbox’s SMTP settings yourself. Your email provider’s help page lists them, usually under “SMTP settings” or “outgoing mail server”. Your IT person or your host can also tell you.

Last checked October 24, 2026. Providers change their menus, so if a button is missing, use the official links at the bottom of this page.

Before you start

A real mailbox. A domain that only forwards email (for example Cloudflare Email Routing, Namecheap email forwarding, ImprovMX or Forward Email) has nothing to send from; Revnio tells you so instead of asking for server details.
A server on the public internet. Revnio refuses servers on private or internal addresses.
A standard mail port: 465, 587, 25 or 2525.

Step by step

Find your provider’s SMTP settings: the server name, the port and the security type (SSL or STARTTLS).
If the mailbox uses two-factor authentication, create an app password with your provider first.
In Revnio, open “Any email account” and enter your address.
Open “Advanced settings” and enter the server, port and security.
Enter the password and click “Connect and send me a test email”.

Server settings

Revnio fills these in when it recognizes your provider. Enter them yourself under Advanced settings if it does not.

Server	`Your provider’s SMTP server`
Port	465 (SSL) or 587 (STARTTLS)
Security	SSL or STARTTLS
Username	Usually your full email address

If it doesn’t work

Revnio cannot reach or find the server. Check the server name for typos and that it is the outgoing (SMTP) server, not the incoming (IMAP) one.
The secure connection failed. Switch the security setting between STARTTLS and SSL, and check that the port matches (587 for STARTTLS, 465 for SSL).
Login rejected. Use the full email address as the username, and an app password if your provider has two-factor authentication.

Taking the access back

Change the mailbox password or delete the app password with your provider, and click Disconnect in Revnio.

Sending limits

Depends on your provider. Revnio’s cap for mailboxes without a built-in shortcut is 200 a day. Revnio stops sending through your mailbox once it has sent this many recovery emails in 24 hours, and sends the rest through Revnio’s own sender so nothing is delayed. These caps are conservative Revnio defaults, not limits set by the provider.

Frequently asked questions

What is an app password?

An app password is a separate, one-purpose password that your email provider creates for a single program. Revnio uses it to send recovery emails from your mailbox, and your real password never goes into Revnio. Most providers require one when two-step verification is on.

Why can’t I just use my normal email password?

Many providers (Google, Yahoo and Apple among them) block outside programs from signing in with your everyday password. They ask for an app password so that you can cancel Revnio’s access later without changing your real password.

Is it safe? What does Revnio do with the password?

Revnio stores the password encrypted and never shows it back to you or to anyone else in the dashboard. Only an admin can connect a mailbox, and disconnecting deletes the stored password. An app password can open your mailbox, so treat it like a password: give it a name you recognize and delete it when you stop using Revnio.

Can I revoke it later?

Yes. Delete the app password with your email provider (each provider’s page shows where) and click Disconnect in Revnio. For the one-click Gmail connection, Disconnect also tells Google to end Revnio’s access.

Which mailbox is used if I connect more than one?

One mailbox per organization. Connecting a new one replaces the old one, and the dashboard asks you to confirm before it does.

Recover failed payments on autopilot

Revnio retries failed payments at the right time and reaches customers by email and WhatsApp until the card is fixed. Works with Stripe, Chargebee and Paddle.

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