Auto loads remote images
Gmail for iPhone is the only version of Gmail that dishonors you setting to not automatically load remote images. This acts as a read receipt for certain emails even if you don’t want to send read receipts. I used to really love Gmail and always gave it 5-star reviews. But this violation of privacy that the user cannot fix is intolerable. Even the Android version of Gmail doesn’t have this flaw. I don’t have any idea why Google decided to do that with their iPhone app.
FireSmack about
Gmail - Email by Google, v5.0.180311