The system is limited by the memory size (8, 16 or 32 GB as of this writing). It also depends on the size of the messages and attachments and on the free space available (movies, pictures, songs, apps). If your iPhone isn't full of other things, it can hold thousands of emails.
You can have unlimited emails but the more email accounts you have on the phone the slower it will be to check all the mail boxes
I entered 20 accounts then stopped.
As many as the OS and memory can handle.
Yes, you can set up multiple accounts.
There are many other ways of backing up messages and emails on iphone imactools.com/iphonebackupviewer/
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2GB can hold an average of 500 songs, but it differs with song size and source. For email, it can hold up to 2,000 emails but that also depends on if the emails are all just text otherwise it would be less.
You can add a signature to your emails, via the iPhone 4. Go in to the email settings and you have the option to change from the "sent from my iPhone" to anything you want. This will hen be automatically added to all outgoing emails as your signature.
7-10
About 4000
The easiest and fastest way to delete 5,000 old emails from your iPhone S4 is to just delete the email account.
it depends on how many gb's you have.
computer and iPhone
Depending on your email provider you may have set it up incorrectly.not getting emails or I. can' t srnd
About 20,000
I THINK IT HOLDS AS MANY AS YOU CAN PUT ON THERE.