The standard email application on Apple iOS devices (iPhones, iPads and iMacs) will offer you the opportunity to shrink photos if you attach a large number of photos to an email, or if any of the photos are large; this make it quicker to upload the photos for sending, and makes it less likely that the recipient's email system will reject the email! (If people are using gmail, then incoming messages more than 10MB in size are automatically rejected.)
However, if you are only sending one or two photos, your Apple device may not offer you the option to reduce the size of the photos - and this can cause problems for Touchbase, as our account with gaggle mail will block emails with attachments if we have exceeded our allowance. For this reason, we ask you to install a photo compression app on your device, and use on the photos you want to send before attaching them to an email (or using the share button). The one we recommend is called Compress Photos, which is available from the Apple App store:
https://apps.apple.com/gb/app/compress-photos- pictures /id1449007043.
Once installed, you can open images inside the app and decide which images you want to compress, and by how much. The developers say that to get most use of the app, you have to grant it access to all the photos on your device: "Open the Settings app, scroll down to the Compress section, and tap on Photos. Then make sure All Photos is selected."
The icon for the app is as shown below, and the web site for the developers is https://www.sixstarapps.com/compress-photos/