Connect TrekMail to Any Email App
Use the guided Apps & devices screen to connect a TrekMail mailbox to Gmail, Outlook, Apple Mail, Thunderbird, or another IMAP app.
Article details
Type, difficulty, plans, and last updated info.
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Article details
Type, difficulty, plans, and last updated info.
- Type
- Guide
- Difficulty
- Beginner
- Plans
- Nano · Starter · Pro · Agency
- Last updated
- Oct 10, 2026
You do not have to leave Gmail, Outlook, Apple Mail, Thunderbird, or another familiar email app to use your TrekMail address. Apps & devices gives you the right instructions and secure server settings for the mailbox you selected.
Before you connect
You need two things:
- The full mailbox address, such as
hello@example.com. - The password your email app should use. In App passwords only, use an app password. In Mailbox password or app passwords, either works. Neither is your TrekMail dashboard password.
Create an app password in webmail under Settings, App passwords, or ask whoever manages the mailbox to create one in the dashboard under Mailboxes, the mailbox, Security, App passwords. It is shown only once, so copy it straight into the app. Apps & devices tells you which password the selected mailbox accepts and, when it needs an app password, offers a Create an app password button. See Mail app passwords for details.
Existing mailboxes keep accepting the mailbox password at rollout. New ones follow Account settings > New mailboxes > Mail apps need app passwords (on by default); changing that setting does not switch existing mailboxes. A single mailbox created in the dashboard can use a different choice with the Mail apps use a separate password switch, and a mailbox created in App passwords only comes with its first app password on the Mailbox created card.
Both receiving and sending must be ready. Some email apps test the incoming and outgoing servers together, so a mailbox that can receive but cannot yet send will fail their account check.
If TrekMail says that sending is not ready, finish the domain's SMTP setup first. You can configure your own SMTP provider or choose a plan with managed SMTP. Return to Apps & devices when the status shows that sending is ready; TrekMail will not present an incomplete configuration as usable.
Where to find Apps & devices
Use whichever route is most convenient:
- Dashboard: open Mailboxes, select the mailbox, then choose Apps & devices in its settings.
- Webmail: click the settings gear, then choose Apps & devices. It appears directly above Connected accounts.
- Setup wizard: after creating a mailbox, choose an app from the final step when sending is ready.
The two similarly named webmail sections do different jobs:
- Apps & devices puts your TrekMail mailbox into another email app.
- Connected accounts brings a Gmail, Outlook, iCloud, or other external mailbox into TrekMail webmail. App passwords requested there belong to the other provider.
Choose your email app
Open Apps & devices, then choose the app you want to use:
- Gmail app: for the Gmail mobile app on Android or iPhone. Add the mailbox as Other or Personal (IMAP), not as a Google account.
- Outlook: for Outlook on desktop or mobile. If automatic discovery does not complete, choose IMAP or Advanced setup.
- Apple Mail: download a secure Apple configuration profile that installs the incoming and outgoing account settings together.
- Thunderbird: choose manual configuration, then use the supplied IMAP and SMTP values.
- Other app: for Samsung Email, Spark, eM Client, and any app that supports standard IMAP and SMTP.
Each choice shows a short, app-specific process. For Gmail, Outlook, Thunderbird, and other apps, Copy server settings copies the values you need. You can also expand Show IMAP and SMTP settings to read them on screen.
Apple Mail profile
On the Apple device you want to connect, choose Apple Mail and download the configuration. Then:
- On a Mac, open System Settings, General, Device Management. On an iPhone or iPad, open Settings, General, VPN & Device Management.
- Select the downloaded TrekMail profile and approve Install.
- Enter the password when Apple Mail asks for it: an app password if the mailbox accepts app passwords only, otherwise the mailbox password or an app password.
The downloaded file contains the mailbox address and secure server settings. It never contains your password. If your organization blocks configuration profiles, use the manual settings shown in the same Apps & devices screen instead.
Manual settings at a glance
| Setting | Incoming mail | Outgoing mail |
|---|---|---|
| Server | Copy the incoming host shown for the mailbox | Copy the outgoing host shown for the mailbox |
| Port | 993 |
465 |
| Security | SSL/TLS | SSL/TLS |
| Username | Your full mailbox address | Your full mailbox address |
| Password | An app password, or the mailbox password if the mailbox accepts it | The same password |
Port 587 with STARTTLS is also available when a network or app cannot use SMTP port 465.
If you got your mailbox from a White Label provider who runs their service on TrekMail, the Apps & devices screen may show their names, imap.theirbrand.com and smtp.theirbrand.com, instead of the platform defaults. Those are the same servers and the same ports; use whatever that screen shows you.
If your domain uses a custom SMTP provider, you still enter the outgoing TrekMail or branded host shown on this screen. TrekMail securely applies the private provider route behind the scenes; never copy your provider's secret credentials into an end user's email app.
If the app cannot connect
Check these points before changing or deleting anything:
- Confirm that the username on both servers is the complete email address, including the domain.
- Confirm the password. If the app shows "Sign-in failed. This mailbox accepts app passwords only: create one in webmail under Settings > App passwords.", the mailbox refused its mailbox password: create an app password and enter it instead. Some apps show only "password incorrect", so check the mode in Apps & devices. Replacing or revoking an app password stops it from working. An admin setting a new mailbox password, password reset or recovery, sign-in suspension, conversion to shared, or moving to Recently deleted revokes all app passwords; restoring the mailbox does not restore them. Your own password change in webmail keeps them unless you select Also revoke all app passwords (off by default). Never use the dashboard account password.
- Check Apps & devices again and make sure it says that sending is ready.
- Confirm SSL/TLS is enabled and the incoming and outgoing ports match the displayed values.
- Remove only the failed TrekMail account or TrekMail configuration profile before retrying. Do not delete unrelated saved passwords, Keychain entries, or other email accounts.
If an app password was replaced or revoked, enter a new one. An admin setting a new mailbox password revokes all app passwords; a user's own change in webmail does so only if they select Also revoke all app passwords. Moving the mailbox to Recently deleted also revokes them, and restoring it does not bring them back.
For a full port and connection-limit reference, see IMAP & SMTP Settings for All Clients. For Apple-specific checks, see Set Up TrekMail in Apple Mail.
Related articles
Jump to nearby guides that continue the workflow.