3 reasons why you can't receive or send Gmail and how to deal with it - how to set up your smartphone | Beyond

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Explanation of cases and reasons why Gmail cannot be received/sent

The problem of "email not being delivered" that is rarely encountered when using Gmail. What you want to avoid in a business where uninterrupted communication is more important than anything else.

I will explain why Gmail is not delivered (cannot be sent) and how to deal with it.

Cases where Gmail does not arrive (1): An error is displayed and you cannot send

Check that the recipient's email address does not violate the rules for address names that can be used in emails.

As above "." is added before the "@" mark. If you do, it's probably due to the address name.

The workaround is to use the web desktop version of Gmail as shown below and enclose the part before the "@" with """.

「”xx..x”@docomo.ne.jp」

Cases where Gmail does not arrive (2): You can send but the email does not arrive

If you were able to send the email but it does not arrive, please follow the Gmail settings on the recipient's side. is likely to be the cause. E-mails from addresses not registered in the address book will be automatically sorted into the spam folder. (Even if you don't make any special settings in Gmail, certain emails may be rejected by the default settings.)

In this case, there is no choice but to ask the recipient to check the spam folder and register the address. As long as you can send an email, you can be sure that the other party has received it. However, especially if it's your first email or an important email, it's a good idea to check it separately by phone.

Case where Gmail does not arrive (3): An error mail is returned

The third is that if you are using Gmail, you probably have experienced it once, "I can send, but For some reason, an English error email is returned later".

In this case, the cause is either 1. The email address is incorrect, or 2. The size of the attached file is too large.

[1. The email address is incorrect] In this case, "unknown user" or "Host unknown" will be displayed in the reply email. In this case, please double check that the recipient's email address is correct.

【2.Even though the e-mail address is correct, an error e-mail is returned】There may be cases where the other party's mobile phone is set to reject e-mail reception. In this case, the only option is to have the address registered in the allow list in the other party's settings.

[3. Attachment file size is too large] In this case, you will receive a reply email saying ”Message size exceeds fixed limit” or ”Message size exceeds maximum value”. In this case, lower the quality of the image file a little, or divide it into multiple emails and send it.

Up to this point, we have mainly explained the reasons why emails are not delivered on computers, but what should we do if emails are not delivered on smartphones?

I will explain separately for Android and iOS (iPhone).

What if I can't receive it on my smartphone?

Finally, I will explain the cases of iPhone and Android when gmail is not delivered on smartphones.

For iPhone

If you are receiving Gmail on your iPhone, most likely you set up a Gmail account on your iPhone and send and receive emails using the mail app on your device.

There may be a problem that an alert such as "Unable to retrieve mail" is displayed and mail is not received. In that case, you need to reset your Gmail account. Try resetting by following the steps below.

For Android

If the Android version of the Gmail app causes a synchronization error, you may experience problems such as not receiving new mail or being unable to read mail.

In that case, first check if your device is connected to the internet, then try restarting or updating the app. Many cases can be improved with these basic measures. If that doesn't work, try the following.

It is possible that new emails are not being received due to the synchronization settings of the Gmail app, so please check the synchronization settings of the app from the menu icon.

Open Gmail on your computer and see if you can log in. You should check that you have entered the correct username and password, especially if you get the error below.

You may be able to receive emails correctly by deleting the Gmaild data on your device.

First, try to see if the above method can solve the problem, and if it still doesn't work, try deleting the data with the following procedure.

What if it still doesn't arrive?

If you have tried these steps and are still unable to receive the email, check your spam filter settings.

There may be cases where the email does not arrive due to anti-spam measures taken by Docomo, au, and Softbank carriers.

Especially if you are using a carrier mail, the default setting may be set to not receive mail from other than that carrier, so there are many cases where you cannot receive mail from Gmail.

In that case, you need to check the junk mail setting of your carrier mail and change it to receive mail from gmail.com. For detailed mail settings for each carrier, please refer to the official website of each carrier.

Summary of 3 cases where Gmail does not arrive and causes

So far, we have introduced 3 causes and solutions when you cannot receive or send emails with Gmail.

Email is a convenient way to communicate, but it's not 100% reliable. When an error occurs, check the cause and corrective action and take appropriate action.

Thorough Explanation of How to Use Gmail [Complete Guide]