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Connect an IMAP mailbox

Connect any other provider to Trupeo with IMAP and SMTP, including where to find the server settings.

IMAP is the standard way to read a mailbox from another application. Trupeo uses it for every provider that is not Google and not Microsoft.

When you use IMAP

You do not have to choose. When you enter the shared address on the “Which mailbox do you want to connect?” screen, Trupeo looks at the domain of the address and at how that domain receives its mail. If it is neither Google nor Microsoft, the next screen is the IMAP form.

That covers addresses hosted at a registrar or a web host, and most independent business mail services.

What you need

  • The shared address and its password. The IMAP username has to be the mailbox address itself: Trupeo refuses a username that differs from the address you are connecting.
  • The IMAP server and its port, for receiving.
  • The SMTP server and its port, for sending.

The form asks for exactly those: “IMAP host”, “IMAP port”, “IMAP username”, “IMAP password”, then an “Outgoing email (SMTP)” block with “SMTP host” and “SMTP port”. If your provider requires different credentials for sending, tick “Use different credentials for outgoing mail (SMTP)” and fill those in.

Finish with “Test connection”. When both connections answer, Trupeo confirms it and the “Sync and continue” button appears.

Where to find those settings

At your provider, not here. Look for “IMAP settings” or “mail configuration” in their documentation or in their control panel: the four values are always given together.

We do not publish a table of servers per provider: those values change, and a stale table costs more time than it saves. For the most common providers Trupeo pre-fills the form for you; check the suggested values before you test.

Application passwords

Some providers refuse the account password when the request comes from an external application, especially when two-factor authentication is on. They ask for an “application password” instead: a dedicated password you generate in the account’s security settings, used by that one application.

If your provider works that way, generate that password and enter it in Trupeo instead of the usual one. The mailbox keeps its normal password for everything else, and you can revoke the application password at any time without changing the account password.

If the connection is refused

The error message already tells you which side failed: “IMAP connection failed” for receiving, “SMTP connection failed” for sending. Two causes cover the vast majority of cases.

A port that does not match. Trupeo accepts IMAP ports 993 and 143, and SMTP ports 465 and 587. Any other port is refused before it is even tried. The boxes “Use secure IMAP connection” and “Use secure SMTP connection” have to match the port: ticked for 993 and 465, unticked for 143 and 587, unless your provider says otherwise.

IMAP turned off on the mailbox. Several providers ship mailboxes with IMAP closed, or close it on accounts that only ever use webmail. It is switched back on in the account settings, on the provider’s side.

If both of those are right and it still fails, check the username and password by signing in to the mailbox’s webmail: an expired password produces exactly the same error.

After connecting

Trupeo imports your history in the background. The first messages appear quickly, a large mailbox takes longer, and you can use the inbox during the import.

If this is your first mailbox, what comes next is described in Connect your first mailbox.