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How to Use the Iridium Mail App on an iPhone/iPad
How to Use the Iridium Mail App on an iPhone/iPad
Arnaud Monges avatar
Written by Arnaud Monges
Updated over a week ago

The Iridium Mail App is an email service that works with the Iridium GO! However, you will notice on the App Store this app 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. Unfortuntately due to the ongoing bugs and support issues with the Iridium Mail App, we no longer support this App.

To lean more about PredictMail please read more

To setup PredictMail please read these help articles

Iridium Mail Setup Instructions: NOTE: This app is no longer supported by PredictWind

This Iridium Mail & Web App provides email access over the Iridium network. The email feature allows you to register for one or more email accounts, that may be used like any email account.

Activation of Iridium GO!

To activate your SIM card please go to: PredictWind Satellite Portal

You will need to use your SIM card number when the package arrives, and the IMEI numbers on your actual Iridium GO unit itself. In the activation process you will select your airtime plan, and must enter your credit card details for the airtime charges.

The activation process will be complete within 10 minutes.

Please note the billing of your Iridium GO plan is pro-rated so you can choose to activate your Sim card at any time during the month, and will only pay for that portion of the monthly charge.

1) Download Iridium Mail & Web App and The PredictWind Offshore App. Please note: We recommend installing the Offshore App before using the Mail app.

Download and install the ‘Iridium Mail & Web’ and the PredictWind 'Offshore App' from the App Store on your iPhone or iPad.

2) Register for an Iridium Email Account

Navigate to URL to fill out the registration form, follow the instructions and register for a username and password. Select ‘Iridium Subscriber’ from the device selection drop-down menu in the registration form. Registration for an account is free and it is required to use the application.

Please note your username becomes your email address. ie if johnsmith is your username, your email address would be

The alternative username is required in case the initial username you request is not available.

Your password for the Iridium Mail & Web App must be between 6-18 characters, upper and lower case letters are allowed, numbers are allowed, and only the following punctuation marks are allowed. , ? ! ; : - _ () {} [] “ ‘

Please be careful that you accurately record the password, as you will need it for setting up the Iridium Mail & Web App.

The email field at the bottom is for Iridium to send to you confirmation of the registration process by email (please check spam/promotional folders if you do not receive the confirmation). This email address should be your normal land-based personal address (Gmail/outlook/yahoo/etc).

The Iridium email address is not associated with your SIM card, so if you do get a new SIM card you do not need to register again. However if your account is inactive for 12 months the email address is removed from the Iridium email servers.

Note: All your emails are saved locally on the device, if you delete the App at any time you will lose the email data with it. These emails cannot be recovered.

3) Connect your iOS Device to the Iridium GO! WiFi

  • Flip-up the antenna on Iridium GO! to turn it on.

  • Wait for Iridium GO! to initialize and establish a connection with the Iridium network.

  • On your iOS device, go to the Wi-Fi setting and select ‘Iridium-xxxx’ network. Wait for your iPhone or iPad to connect to the Iridium GO! Wi-Fi network.

4) Iridium Mail & Web App Set-Up

Open the Iridium Mail & Web App. You will be asked to enter your full name, username, and password, used during the registration process. Leave the "Reply To" field blank. Now you are ready to send and receive email with your Iridium email address. This method is simple and recommended to minimize your email traffic.

Then the App will guide you to configure the device connection type. Select ‘Iridium GO! for Mobile Devices’ as your connection type, then tap “Iridium Mail & Web” top left to return to the home screen.

5) Send/Receive Email

To draft emails, tap 'Mail' on the main menu and tap the 'New Mail' icon at the bottom right corner of the screen. Tap 'To:' and enter the recipient's address. Tap 'Next' on your keypad to enter the Subject. Tap 'Next' on your keypad to enter the body of the email message. When the message is complete, tap 'To Outbox' in the top right corner. Repeat until all emails are complete.

Click the 'Send/Receive Mail icon' from the mail menu (not the outbox), it is the cloud icon at the bottom left corner of the screen. Select
'Get Mail' The session log window will appear. Wait for the session to complete and disconnect; select 'Done' to return to the Mail menu screen (as seen in the picture below).

How to download Big Mail

  1. Tap on Big Mail folder

  2. You will see the Sender of the big mail and the file size in bytes.

  3. Tap on the mail item, this opens the big mail itself, here you will see the sender, date subject and file size, you now have the option to do one of 3 actions.

  • "delete from server" This email will be deleted.

  • "download" To download the big mail.

  • "cancel" To cancel this action and return to the big mail folder.

  1. If you have chosen to download the "Big Mail" you will need to do a new Send/Receive.

  2. The Big mail will arrive in your inbox. Note 100,000b is 100kb so it will take approx. 10mins for this download.

6) Configure Web Browsing (Text Websites Only)

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.

Download XWeb from the App Store.

  1. Connect your iOS device to the Iridium GO Wifi.

  2. Open the Iridium Mail & Web App to ensure you have valid account information then click on the ‘Web’ icon on the home screen.

  3. Click the upper-right 'Connect' option to start your connection.

  4. Wait for the dialing process to be complete. You will be directed to the XWeb browser app.

  5. Continue to access Web content. If you leave the page inactive for a few minutes, the connection will be dropped, and you will not be able to view any other text-based web pages.

  6. Click the Iridium Mail & Web App to close the data connection. It will automatically close.

7) Twitter

Twitter is no longer supported.

8) Configure Weather Forecast Service

This is a generic weather service with data from the NOAA GFS model. We recommend the PredictWind Offshore App Package for a detailed and accurate forecast.

Can I have multiple email addresses on my Iridium GO?

Yes, you can have 5 email addresses for your Iridium GO!, but you will need a separate iOS/Android device for each email account.

Can I access my Iridium account using a fast internet connection?

You can access your Iridium Mail account via high-speed internet. Send & Receive Emails, Sort Your Folder, Delete Mails or Purge Your lnbox, all from the comfort of your home computer at:

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