You can use the following procedure to save your account information, then to disable SSL.
- Select
Settings
,Mail
- Select
Add Account...
- Select
Other
- Enter all of your relevant email account details
- Select the
Save
button. At this point, you will be presented with an 'invalid certificate' warning. - Select the
Cancel
button; you will be returned to the account details screen - Select the
Save
button; ignore the warning that 'you may not be able to send email' - Open the settings for your new mail account and select the
Advanced
button - Use the sliders to disable SSL for mail receiving/sending. Be sure to check the port numbers to ensure they're valid for your particular email server
You should now be able to send/receive email using your iPhone.