Hope the collective might of the Arrse can help: I have been using Gmail on my three consecutive iPhones over the years with no issues whatsoever. However, for the last week now, I can no longer get my mail downloaded either through 3G or Wlan. The error message is "the user name or password for Google Mail is incorrect". Not having made any changes to my account prior to the error message, I deleted the account and re-installed it, changed passwords, reset the phone, unlocked (-reset)captcha, installed the mail manually (as oppose to pre-defined Gmail), played around with SSL settings, mail labels and Server Ports and still do not have access. Some further info: I do get access through the iphone 4 to my other, secondary gmail account on the phone without any problem through 3G and WiFi. The gmail access to the principal account that does not work through iphone does work from other devices, such as iPad, and Firefox and Safari as well as the iphone browser. This isolates the problem to a combination of iPhone and Gmail and the particular Gmail account in question is where the solution is to be found. Any thoughts???