I have searched in vain for a way of removing the phantom email addresses that popup as I type an address. Many people all over the net have posed this question without any answers. Clearing the safari cache definitely doesn't help. I decided to use the new 3.0 search facility on one of these contacts. The search brings up all the email messages that were deleted months ago!!! I have carefully searched for these messages in sent, trash etc and they are definitely gone. Some cache is keeping not only the contacts but the original emails. This is for a pop account.
So who knows the answer to this? The search will display the message ( in this case 25 deleted messages concerning a job application) and if you click on it, displays the entire email as say 1 of 15 in the sent items. If you click on send to go back to the sent mail folder, it's not there! Of course I must repeat that I deleted it and deleted it from trash a long time ago.
BTW I've been a network and support professional for about 25 years now so I'm not making this up or doing something dumb.
Well its a real annoyance when selecting a contact to have to wade through many others and 2 its a concern to have deleted msgs still lurking arround somewhere perhaps eating up space on my 8gb phone. wonder if attachments are hidden somewheres too. 3rd its not confidence inspiring to have supposedly deleted items still there. what if there is sensitive or just plain secret stuff that you think is safely gone, like applications for jobs when you are already working!
Even on your computer all of your information is still there after deletion. That is unless it is overwritten with a security software that rewrites a bunch of 1's and 0's over the free space a bunch of times.
To find out if it eating up space do a test. See how much space you have, delete something then see if your space amount has changed. I doubt it's eating up space.
Have you tried restoring your phone as new and re-adding you media? This may help if it is really that much of an issue to Wade through past email names. I find this rather handy myself. I sometimes don't want to add a contact but the info is still there if I ever have email said person again.
If your worried about security your gonna have to make a few concessions and set up "passcode lock" and "erase after ten tries" settings that is all I got. Sorry it's not what your looking for.
I am not aware of my pc retaining deleted emails after cleaning them out and there are ways of clearing the cache of contacts. Of course I have a password protected iPhone. Emails take up space period I don't have to test it to know that. Like any tech, I want to know why and where period. Short of cracking the phone there ought to be a tool for clearing this cache.
I posted in other threads about the same topic so just search for my username I guess. I had the same problem, I searched also the only way you can get rid of the remembered email addresses is to Jailbreak your phone and use BossPrefs with the ABRecent Cleanup plugin. Well the only way I've found.
Installed, with the iPhone attached via the sync cable, it scans a variety of locations for flotsam. With scan results available for manual inclusion (or not), you then let it run and it wipes this stuff out. Without letting it delete my cookies / script files, the initial clean got rid of over 1 GB of, uh...crap. No apparent issues thereafter.