How to Fix Apple iPhone 6 that can’t send emails using POP/IMAP and Exchange Accounts

This post contains potential solutions and workarounds for #Apple iPhone 6 (#iPhone6) users who are having problems sending personal and corporate emails on their phone. If you are one of our target audiences, I suggest reading on this entire content.


One of the most significant tools every modern smartphone integrates is the email application. With this tool, smartphone users are able to access their inboxes on the go, and keep posted with the latest mails they get whether it’s personal or business matters. But just like any other smartphone applications, the email app (built-in or third-party) is also not void of glitches regardless of how well it’s programmed. In fact, you can see a lot of complaints associated with email messaging like problems on sending or receiving emails that are populating various websites and forums to date.

What are the possible causes?

Several factors could trigger email problems to arise on your mobile device. But majority of these issues are tied to email server and network failure. For example, the incoming or outgoing server is not accessible from the mobile network or the Wi-Fi network you are connected to.

Server-related problems are usually indicated by error prompts saying, “Cannot get mail. Connection to the server failed,” “Server is not responding,” and the like. Other factors that might cause you from being unable to send or receive emails would include incorrect email settings configuration as well as system glitches from software updates.

Potential solutions, workarounds and recommendations

The methods I’ve outlined below include standard troubleshooting procedures as well as some tricks shared by other iPhone owners via forum posts, on how they’ve dealt with their problem on sending email. Feel free to refer to these solutions, whenever you’re ready.

Important Notes:

  • Before you begin, make sure your phone has Internet access, either cellular data or Wi-Fi Internet connection. To check if you are connected, open a browser and navigate to any website.
  • Unsent messages are stored in your Outbox. After completing each of the subsequent methods, go to your Outbox and try to send any unsent emails again.

Solutions/recommendations for those who cannot send email on their iPhone 6 using personal (POP3/IMAP) email account

Method 1: Verify email account settings on the Mail app.

  1. Go to Settings.
  2. Tap Mail, Contacts, Calendars.
  3. Tap the email account.
  4. If necessary, tap on the account again.
  5. Scroll down to the bottom of the screen.
  6. Under Outgoing Mail Server, tap the right-arrow (>) next to SMTP server information (hostname).
  7. Tap the right-arrow next to hostname right below Primary Server.
  8. Enable the option to ‘Use SSL.’
  9. Authentication must be set as ‘Password.’

Be sure to review all important server information including the following:

  • Hostname – For example:
  • Username – Your complete email address including the information after @ (domain name).
  • Password – The correct password for your email. Re-enter the password.
  • Server Port – Port number is provided by your email service provider.


  • If the port number you see is 25, it means you can only send email when you are connected to your email provider’s network. Ask for other alternative port numbers, if needed.

Method 2: Sign out of your email account and sign in again.

Method 3: Exit Mail app and re-open it.

Method 4: Remove and re-add your email account.

Solutions/recommendations for those who cannot send email on their iPhone 6 using company or work (ActiveSync Exchange) email account

Method 1: Check and re-enter username and password details.

Here’s how:

  • Go to Settings.
  • Tap Mail, Contacts, Exchange.
  • Under Accounts, tap to select Exchange from the available options.
  • Tap Account under Exchange.
  • Review the username and password information. If necessary, re-type the username and password for your email account.
  • Tap DONE on the account screen to confirm or save current changes.

Method 2: Sign out of your email account then sign back in.

Method 3: Remove and then re-add or set up your email account again.

You may need to contact your network administrator (IT personnel) at work to ensure the server (incoming and outgoing) settings you enter are correct.

For those who need further assistance, here’s how to set up your iPhone 6 for Exchange Email:

  1. Go to Settings.
  2. Tap Mail, Contacts, Calendars.
  3. Tap Add Account to create new email account.
  4. Select Exchange.
  5. Tap Email and enter your email address.
  6. Tap Password and enter the password for your email account.
  7. Tap Description and enter the required name.
  8. Tap Next.
  9. Tap Server and enter the server address.
  10. Tap Domain and enter the username for the server.
  11. Tap Password and enter the password for your email account.
  12. Tap Next.
  13. Tap the switch next to the required data type to enable or disable synchronization for the specific data type.
  14. Tap Save.
  15. Tap the name of your Exchange email account you have recently set up.
  16. Tap Account.
  17. Tap Advanced Settings.
  18. Toggle the switch next to “Use SSL” to enable or disable the function.
  19. Tap Account.
  20. Tap DONE.
  21. Tap ..
  22. Tap Fetch New Data.
  23. Tap the switch next to PUSH to enable or disable the function.
  24. Tap to select the desired period or select ‘Manually.’
  25. Tap .. to finish the setup process.

Other workarounds applicable to both personal and corporate email accounts

  1. Perform a soft reset on your iPhone. A simple restart might be the only thing you need to resolve this problem, considering it’s on the software.
  • Press and hold the Power and Home
  • When the Apple logo appears, release both keys.
  1. Reset Network Settings on your iPhone. This process will erase the current network settings such as Wi-Fi network, password, etc., and restore them to default. Create a backup of this information, if necessary.
  • Tap Settings.
  • Scroll to and tap General.
  • Scroll to and tap Reset.
  • Tap Reset Network Settings.
  • Tap Reset Network Settings to confirm action.
  • Wait for your iPhone to reboot and once it turns back on, the default network settings will be restored.

More Helpful Tips:

  • If you happen to encounter problems while using the Email app on your iPhone, be sure to take note of the error message. Error prompts and codes are generally designed to give end-users a hint on what the actual problem is. And from that, you would be able to determine what’s wrong and what to do to get it fixed.
  • Other issues on sending and receiving emails are resolved by power-cycling their modem or wireless routers. The process involves powering off the modem/router, unplugging it from the outlet and then after 30 seconds, plug it back in and turn it on. Once it’s up, reboot your iPhone.
  • Also make sure the email file you are trying to send does not exceed the file size limit. This usually happens when you’re trying to send an email with media file attachments.

Engage with Us

We are here to help! If you need further assistance with other problems on your iPhone 6 or other iDevice(s), feel free to fill up this form with all the required information. We would appreciate if you could provide us with more sensible details of the problem you have, for us to be able to make more accurate analysis, and therefore, come up with the best possible solutions and recommendations. You can also view more solutions to other iPhone 6 problems we’ve addressed in our previous posts through our troubleshooting page.