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Troubleshooting the iOS (Apple) Iridium Mail & Web App
Troubleshooting the iOS (Apple) Iridium Mail & Web App
Keryn McMaster avatar
Written by Keryn McMaster
Updated over a week ago

Very sorry to hear that you are having trouble with the Iridium Mail App. We have found this App to have numerous issues, and very challenging to support. You can see on the App Store it only has a 1.5 star rating which evidence of the customer experience. For this reason, we have developed the PredictMail service, which allows you to use your existing favourite pop3 email client offshore. You can learn more about PredictMail on our website. We highly recommend you make the switch to PredictMail as soon as possible. We are very confident you will love the PredictMail service, and to give you confidence we offer a 100% money back satisfaction guarantee.

Troubleshooting instructions

If you are experiencing any issues with the iOS (Apple) Iridium Mail & Web App please check the following:

  • Make sure you have carefully followed the iOS Iridium Mail & Web setup instructions here

  • If you have registered for an Iridium email address, you should have received an email from stating your name, username and password. Keep this handy as you will need it to confirm the settings are correct in the App.

  • If your iridium email is (for example), your username is 'johnsmith' ****This is the main reason Iridium Mail does not work - due to using the incorrect username****

  • To check or reset your Iridium password go to

  • If you have registered an Iridium email address over 12 months ago, and have not used the email service for 12 months the email address will be deleted from the Iridium system, and you will need to register another email address.

  • Facebook and Twitter are no longer supported by Iridium.

  • The 'Iridium Mail & Web' app allows you to view text-only web pages using the XWeb web browser. It should be noted iOS 14.4 and above no longer works with XWeb. Most websites are now running Https instead of Http, these changes have had implications for the usability of XWeb.


Turning on Diagnostics in the Iridium Mail App helps diagnose any potential issues. With 'Diagnostics' turned on, as you do a send/ receive request for email, the dialling sequence between the Iridium GO and the Iridium Mail App is broken down into individual line items that you can read, so you can see exactly where the issue may be. It is critical to check the spelling of the username and password when it appears.

To turn on Diagnostics > Open the Iridium Mail App > Click on Settings > Click on Connection > At the bottom of the page > Turn on Diagnostics. Then try a new Send/ receive.


If your Iridium Mail & Web app says 'Not connected' or 'Device not found' please check the following:

  1. Try a full power off/on of the Iridium GO! and your tablet/mobile devices.

  2. Check your iOS device is upgraded to the latest operating system

  3. Make sure you have the latest version of the Iridium Mail & Web App version 4.3.5. To check the version number > Open the Iridium Mail & Web App > Click on Settings > Below Weather you will see the version #. Update the App via the App Store.

  4. Please turn your device into Airplane Mode FIRST, then turn on Wi-Fi only. Ensure Bluetooth and cellular connections are turned off.

  5. Check the iOS Wi-Fi of your device is paired with the Iridium GO! - not another network. If paired correctly it should show Iridium - XXXX 'Connected

  6. Turn off or uninstall any Ad Blocker Apps such as AdGuard, AdBlock, StopAd, 1BlockerX, Purify

  7. Turn off, but ideally uninstall VPN Apps. To turn off the VPN on your iPhone/ iPad go to the device Settings > General > Scroll down to VPN > Ensure it says Not connected. Uninstalling any VPN is preferred, as we have seen VPN Apps override your earlier choice to turn it off in the settings. If you uninstall a VPN you will need to do a full restart of the device and Iridium GO before attempting to connect again.

  8. Ensure you only have 1 device accessing the Iridium GO!, If you have multiple devices trying to use the Iridium GO! connection this can be a source of the issue.

  9. On an iPad/iPhone please go to your iOS settings > Wifi > Click on Iridium-XXXXX. At the bottom select HTTP Proxy and click on the "Off" button.

  10. On an iPad/ iPhone that has upgraded to iOS14, ensure 'Local Network' is turned on. This can be done one of two ways:

    • Go to your device Settings > Scroll down the page until you see the Iridium Mail App > Open the App Settings > Turn ON Local Network.

    • On an iPad/ iPhone that has upgraded to iOS14, ensure 'Local Network' is turned on. Go to your device Settings > Scroll down tp 'Privacy' > Tap on Local Network > > Allow Local Network for the Iridium Mail App if it is in the list.


If you cannot get emails to send/ receive please check the following settings

1/ Open the Iridium Mail & Web App

2/ Click on Settings

3/ This is where you enter your name, username and password (as confirmed by email from See here.

4/ Keep the 'Reply to' field empty - DO NOT add an email address in here

5/ Click SAVE

6/ Back in the Settings page Click on 'Connection'

7/ Under Connection Settings > Select Router > it should say 'Iridium Go for mobile devices. See here.

8/ If it says SatStation or any other satellite device, tap on the drop-down menu and select 'iridium Go for Mobile Devices'

9/ Tap on 'Modify Configuration' and in the password field type the word guest. NOTE - 'guest' is the default password for logging in to the Iridium GO device. If you have changed the default username or password for the Iridium GO from 'guest' to something else this can be the issue. We HIGHLY recommend you do not change the default Iridium GO login username or password, but if you have changed it, this password field is where you add the new Iridium GO login password.


  1. Check you have the latest firmware 2.1.22 - Please see instructions at

  2. A lot of issues related to this program are due to an incorrect username/password. Can you please try resetting your password at

  3. Please note the username/password is case-sensitive. Also, note your username is not the full email address. i.e. if your email address is the username is johnsmith

  4. Usernames must be 3-18 characters, all lower case, may contain periods(.), underscores(_) and hyphens(-)

  5. Passwords must be between 6-18 characters, upper and lower case are allowed, numbers are allowed, punctuation marks allowed are as follows . , ? ; : - _ () {} [] “ ‘

  6. Check the signal strength on the Iridium GO! LCD is at 5 bars at all times. Normally you will need to leave the marina where yacht masts and buildings can obstruct the view of the Iridium Satellites.

  7. Please try another device for the Iridium GO, and Iridium Mail & Web App.

  8. Uninstall the Iridium Mail & Web App and XWeb, restart the device, install the apps again and go through the setup process again. NOTE: When you uninstall the Iridium Mail & Web App all emails currently in the app are deleted and cannot be retrieved. You should save/ screenshot any important emails before uninstalling the app.

  9. Reset the Iridium GO with the instructions below:

  • Turn on the Iridium GO!

  • Open the external antenna dust cover on the GO! unit.

  • Use a paper clip or similar point, and press gently inside the Restore buttonhole. This is next to the antenna adaptor port. Be careful not to touch/break the antenna adaptor.

  • Follow the screen menu prompts to reset settings to factory defaults.

  • Important: All previous settings will be lost, the SSID will be reset, and any new users will be deleted.

We have seen the odd case where the Message (Service Center) number is not correctly set up after a system reset. You can check this by connecting your iOS device to the Iridium GO Wi-Fi, Open the Iridium GO App, go to "Settings", then the menu "Message". Make sure the number is set to +881662900005

Please let me know how you get on.


  1. Please open the Iridium Mail & Web App

  2. Go to "Mail" then the "Big Mail" folder.

  3. Click on the rubbish bin icon at the bottom right, then click yes.

  4. Then please do another send/receive of email to delete the large emails that are blocking incoming emails.

If you believe your mailbox is blocked with too many emails and purging does not work, please try the following.

1. In the Iridium Mail and Web App start a download and then hit cancel. You will be given a series of options one of which is to halt the connection and delete all pending mail on the server.

2. If you have access to the internet then please follow this link and log in to your account. Select change email and scroll down the page to "Purge Big Mail" and click submit.

3. The last resort is to email with the account name and password that needs to be cleared out.

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