If you are facing issues with the Mail app after updating iOS 16 then you can go through these ways to fix your issues:

• You can fix the not working issues just by restarting your iPhone. For restarting you have to press & hold the power button & slide to power off from on the screen. Then have to wait while and switch on your iPhone back.

• Always inspect that your iPhone is running the latest version of iOS and you can check the available software updates by visiting the Settings then General software updates. These updates can fix your mail app not working issues.

• Then check the setting of your Email account that it is correctly set up on your iPhone or not. To check the Settings of email you have to visit Settings then password & account from there you can select your email account and check all the settings are correct or not. Inspect that the incoming and outgoing mail servers are correct and you have entered all the account information such as ID and password correctly.

• You can visit the settings app and then Mail option and then account and can select the account that is experiencing the issue and then toggle off the button for Mail to disable the account. Wait a while and toggle the switch back on to re-enable the account.

• Sometimes Clearing the cache of Mail app can help you to fix the issues. To delete the app cache, you have to go to Settings then General then iPhone Storage then Mail and then press Offload App or Delete App. Redownload the app from the App Store following that.

• If any of the above methods don’t work then you can delete your email account from your iPhone and add your email account again to it.

• If any if these methods will not be able to solve your issue then you can reset your all settings ok your iPhone. This will lead to reset all settings of your iPhone to their default values so you will be required to enter your Wi-Fi passwords again , have to pair Bluetooth again and set all other settings.

• If above mentioned methods will not be able to resolve your issues then you can contact Apple support or Email provider support for further help and support.

If your email is not working on your iPhone then you can fix it by following these methods:

• First you have to check the connection of your iPhone to the internet, either through Wi-Fi or cellular data. 

• Then check the setting of your Email account whether it is correctly set up on your iPhone or not. To check the Settings of email you have to visit Settings then password & account from there you can select your email account and check all the settings are correct or not.

• You can also fix the not working issues just by restarting your iPhone. For restarting you have to press & hold the power button & slide to power off on the screen. Then have to wait a while and switch on your iPhone back.

• Always inspect that your iPhone is running the latest version of iOS and you can check the available software updates by visiting the Settings then General software updates.

• If any of the above methods don’t work then you can delete your email account from your iPhone and add your email account again to it. You can delete and add your account to iPhone by visiting the Settings then Passwords and Accounts them have to select your email account which you want to delete and click delete account option. And to add your account back you have steps given there. 

If your iPhone mail app is not loading emails and your are facing the problem & you don’t know the reason why iPhone isn’t loading emails then these methods will help you out to fix the issues:

• Very first you have to check the connection of your iPhone to Wi-Fi or Cellular Data. When your iPhone will not be connected to internet then your mail app will not be able to load emails.

• If there is any minor software problem then you can fix it just by refreshing your iPhone mail app by closing and reopening only.

• You can also fix your issues just by restarting you iPhones sometimes which will leads to fix minor software issue. 

• Make sure that your iPhone is running an updated version of iOS because if your iPhone is using outdated version of iOS it would creates a problems for your iPhone apps.

• Your persistent software issues can be fixed by deleting and reinstalling an iPhone mail app, it will solve your problem in few seconds rather than wasting your time in finding the cause of the problem.

• If any of the above methods don’t work then you have to delete your email account from your iPhone and add your email account again to it. You can delete and add your account to iPhone by visiting the Settings then Passwords and Accounts then have to select your email account which you want to delete and click delete account option. And add your account back and have to log back in.

• You can reset your network time to time because if anything will change there it can cause issues in connections. It may waste your time on searching the cause of the issue you can avoid this and can give a fresh start to your phone just by resetting all the networks settings.

• If any of these steps didn’t work then you can contact your email provider’s customer support.

If your iOS Mail app not displaying all your latest email in your inbox there could be many reasons for that and here are following reasons due to which this issue could arise:

• First check that your email account settings is correct or incorrect because incorrect email account setting can cause to stop displaying all your latest email in inbox. Make sure that your account details are entered correctly in your email account and verify your email account by visiting settings then password and account then your email account settings.

• Make sure that you have set up your mail app to display  all of  your emails. You have to visit the settings then Mail & make sure that Organize by Thread is off under the Threading section. Also make sure that you have nit selected None under the Preview section.

• Always select All Inboxes by visiting your inbox and click Filter button in the bottom of left corner and don’t apply any other filter.  Because if you will apply Filter then Mail apll will Filter your emails and can hide some of them from view according to filters.

•  You can also resolve your issue just by clearing the mail app cache and checking your email storage time to time.

• By using webmail interface of your email provider you can log in your email account to check your missing emails are appearing there or not.

• If none of these methods work then you can contact customer support of your email provider or Apple support for further help.

If you want to connect different email accounts to the iOS Mail app then you can follow these steps: 

• First you have to visit the Settings app on your iPhone ,there will be the option of Passwords &Accounts click it.

• Then click the option of Add Account then you can select the email service provider such as Google, Outlook or Yahoo to connect the email service which you want to connect. 

• There you will be required to enter your account credentials such as your email address and password and then have to click the option of next. 

• Then follow all the instructions visible on your screen to complete the process of setup. There could be requirement of some additional information such as your server settings/security option depending on service of your email and you have to provide it.

• You can follow above steps again if you want to add other email accounts too.

• You will be able to manage and view all your emails at one place after adding your email accounts to the Mail app.

• If you want to switch from one account to another then you can tap at the accounts button which will be at the top of your Mail app, or can swipe left or right on the screen of Inbox to switch from one to another account.

If your search is not working in your iPhone mail app then you can try these steps to fix the issues:

• If your search function is not working then very common issue will be any disability in your internet connection so firstly you have to check the connection of your iPhone to internet either through cellular data or through Wi-Fi. If you are nit connected to internet your search function will not work.

• You can fix this issue just by closing and reopening your Mail app.

• Very simply you can fix this issue just by restarting your iPhone sometimes. It will fix the issue if will be minor.

• You can visit the settings app and then Mail option and then account and can select the that is experiencing the issue related to search function and then toggle off the button for Mail to disable the account. Wait a while and toggle the switch back on to re-enable the account.

• Make sure that your iPhone is running an updated version of iOS because if your iPhone is using outdated version of iOS it would creates issues with the Mail app.

• If any of the above methods don’t work then you have to delete your email account from your iPhone and add your email account again to it. You can delete and add your account to iPhone by visiting the Settings then Passwords and Accounts then have to select your email account which you are facing the search function problem and click delete account option. And add your account back and have to log back in.

• If any of the above methods doesn’t work then you can contact Apple support for more help and support.

If you’re experiencing issues in your mail app on iPhone then you can go through these methods:

Method 1: Check Your Network Connection

• Very first you have to ensure that your iPhone is connected to the internet either through Wi-Fi or data.

• You have to check that your internet connection is working properly or not by opening a browser on your iPhone then try to load a webpage.

• You can move closer to your router or can reset it to make good connectivity through Wi-Fi.

Method 2: Force Restart and close the Mail App

• You can access the app switcher by swiping up from the bottom of your iPhone’s screen or can double click the Home button on older models of iPhone.

• You have to swipe left or right according to your phone model to access the mail app.

• You have to force quit the mail app by swiping it in an upward direction.

• Now reopen the Mail app to check that it is working properly or not.

Method 3: Restart Your Device

• As you must know how to turn off the power of the iPhone, if not then you have to press & hold the power button of your iPhone till the option of sliding to power off doesn’t appear.

• Slide the appeared slider towards the right to turn off your iPhone.

• Now wait a while and then again press the power button until the logo of Apple doesn’t appear on your iPhone’s screen.

• After restarting your iPhone again try to open the Mail app.

Method 4: Check Your iPhone’s Date and Time Settings

• Very first visit the settings section of your iPhone then tap on the General option and then select the Date and time option on your iPhone.

• Ensure that you have turned on the Set Automatically option.

• If it is already on, then you can turn it off and then on it back to check if it fixes the issue.

Method 5: Login to Webmail

• You can also try to log in to the Webmail interface of your email provider either by your iPhone or a computer, while facing issues with your email.

• If you are able to access your email through webmail it shows the is likely with the app on your iPhone.

Method 6: Remove the Email Account and Re-Add It

• You can delete the Email Account and Add It Again by visiting the Settings section of your iPhone then select the password and account option from there.

• Then select the email account in which you are facing troubles.

• Now,  you can see the Delete Account option at the bottom of the screen, tap it.

• Confirm it that you really want to delete this account.

• After deleting the account you have to tap the Add Account option then have to follow all the appearing instructions to re-add the account.

Method 7: One-stop Solutions to Fix the iPhone Mail App Issue

• If all the above mentioned methods fail then , for fixing the issue you can try a third-party iOS system repair tools like Tenorshare ReiBoot or iMyFone Fix Ppo.

• You can repair any basic issues with the operating system of your iPhone; it may cause the Mail app to malfunction.

• Must keep in mind that these are not free tools and not necessary in every situation.