How to fix Galaxy S8 “invalid email address” error when sending emails

This troubleshooting article discusses the resolution of the "invalid email address" error of the Galaxy S8. This bug appears to appear only when an S8 tries to send an email, as detailed by a user below. If you encounter the same problem, learn the steps below to solve it.

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Problem: "Invalid email address" error of the Galaxy S8 when sending e-mails

galaxy s8 was hacked. the problems were, screen turned off about as fast as I could turn on device, could not turn off device, screen was locked, could not access. had help bypassing the locked screen. restarted camera lose photos. everything seemed fine until I tried to send an email. every address that I enter indicates "invalid email address". when I try to put my email address as if you were registering somewhere, the message indicates an invalid email address. I can receive emails ok. have searched online for days, impossible to find the solution. I've tried entering the Google Account, I can not access it. they sent many verification codes. when I enter a code, the message says an incorrect code. can not find help from google. If this is not a phone problem, do you have any ideas on what to do next? THANK YOU.

Solution : The "Invalid Email Address" error is generic and does not generally point to a specific factor. To know the real reason, you must perform a number of troubleshooting steps. Follow the steps below to find out how.

Wipe the Phone

If you think your phone has been hacked, the first thing to do is to make sure that it is restored to its original state. You can do this by wiping with the factory reset. Follow the steps below to find out how to proceed:

Create a backup of your photos, videos, contacts, documents, etc.
Turn off the device.
Press and hold the Volume Up and Bixby keys, then press and hold the Power key.
When the green Android logo appears, release all keys ('System Update Installation' is displayed for about 30 to 60 seconds before the Android system recovery menu options are displayed. 39, post.)
Press the Volume Up key repeatedly to highlight "Clear Data / Reset Factory Settings".
Press the power button to select.
Press the volume increase key until "Yes – delete all user data" is highlighted.
Press the power button to select and start the general reset.
When the general reset is complete, the message "Restart the system now" is highlighted.
Press the Power button to restart the device.

Setting up e-mail

Once the phone clears via factory reset, the next good thing to do is to setup your email again. You must do this before reinstalling your applications. This should eliminate the risk that a third-party application interferes with your email.

When setting up your email, be sure to use the appropriate incoming and outgoing server types. Refer to your email provider's instructions for how to add your mail correctly.

After setup, you want to check again if the problem is gone. If the error "invalid email address" disappears at this time, then you can install your applications again.

Starting in safe mode

If the "invalid email address" error reappears after reinstalling your applications, it clearly means that one of them must be causing the bug. It is also possible that this is the same reason for hacking. To check if you have installed a bad application, consider starting it in safe mode. In this mode, the execution of all downloaded applications will be blocked, which will allow you to identify the culprit later. To start in safe mode:

Turn off the device.
Press and hold the power key past the model name screen.
When "SAMSUNG" appears on the screen, release the power button.
Immediately after releasing the Power key, hold down the Volume key while holding it down.
Continue to hold down the volume down key until the unit restarts.
Safe Mode will be displayed in the lower left corner of the screen.
Release the Volume down key when safe mode is displayed.

After the device restarts in safe mode, you want to check if the email is working properly again. If all goes well and the "invalid email address" error no longer occurs, you must perform a follow-up process to identify the wrong application. Here's how:

Start in safe mode.
Check if the "invalid email address" error is returned. If the email is working, go to step 3.
Uninstall an application that you think might be causing the problem.
After uninstalling an application, restart the phone in normal mode and look for the problem.
If "invalid email address" error occurs, repeat steps 1-4.

Check if the e-mail can be sent on the Webmail

If the error persists even in safe mode, it means that the cause of the problem is not a third-party application. It can be a problem with your email account. To check if this is the case, try sending an email using a web browser. All browsers will do it, it's up to you. The purpose of this troubleshooting step is to check if your email account is having a problem sending email.

Clear the cache of the courier application

If sending an email by email is not a problem, then you must return to troubleshooting the email application. One of the direct ways to handle the application is to clear its cache. Here's how:

Open the settings of the application.
Tap Apps.
Tap More Settings at the top right (three-dot icon).
Select Show system applications.
Find and tap your app.
Storage of the tap.
Tap the Clear Cache button.
Restart your S8 and look for the problem.

Clear the data of an email application

If nothing works after clearing the cache of the mail application, try to restore the application to its original state. Follow these steps:

Open the settings of the application.
Tap Apps.
Tap More Settings at the top right (three-dot icon).
Select Show system applications.
Find and tap your app.
Storage of the tap.
Tap the Clear Data button.
Restart your S8 and look for the problem.

Use another courier application

If the problem is caused by a bug in the same messaging application, consider using another messaging application. We assume that you are using the standard Samsung email application so you can choose others, such as the Google Gmail app, Microsoft Outlook, or any other application in the Play Store.

Get involved with us

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