Troubleshooting for when an email does not arrive

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Troubleshooting for when an email does not arrive


If you do not get an email after booking, it could be due to one of the following:
■ The procedure is not complete
■ The email was blocked by your spam filter
■ The registered email address is incorrect

Please complete the procedure in the following order.

【1】Check your reservation status on the My Page reservation list.
【2】In the event that the procedure has been completed, change the e-mail settings as follows.
【3】On the My Page reservation list, click "resend" for the respective reservation to resend the email
【4】If the issue is none of the above, or if you have any questions, send an inquiry to Kosokubus.com.
For the inquiry, please use the desktop site or mobile site inquiry form. Your email will be answered within one business day. ※Japan time

If the reservation is confirmed, please confirm your email settings.

If you use a free email address:
With Gmail, Yahoo, and similar web mail services, emails will sometimes be treated as spam email, even if they are from a legitimate source. Please check your spam email folder. Sometimes emails are automatically sent to the spam folder.

It is often the case that the wrong email address was registered. Please check the domain (after the @ symbol).

【n】(en) and【m】 (em)
【o】(the letter o) and【0】(the numeral zero)
【-】(the hyphen symbol) and 【_】(the underscore symbol)
xxxxx.ne.jp & @xxxxx.co.jp
xxxxx.co.jp & @xxxxx.com
xxxxx.ne.jp & @xxxxx.net


If you use another email address:
Even with an email from a legitimate business, your email service or email software might mark the email as spam mail and treat it as such.

Points to confirm

Is there a restriction on the number of characters you can receive?
Depending on your model or agreement settings, there is a limit to how many characters you can receive.
Because the emails that Kosokubus.com sends are about 3,000-9,000 characters, please change the email address to one that can receive long emails and then resend the email.

Are the settings set to reject emails that contain a URL?
Depending on your model or agreement settings, it might be the case that "http://~" in the body of the email will be recognized as a URL, and the email will be rejected.
Please change your settings. We apologize for the inconvenience.

Email addresses that contain symbols in succession, such as【 -_- 】and【 ... 】

Email addresses with symbols and an "@" in succession, such as【abc_@】and【123456.@】

You may not be able to send or receive email successfully if your email address fits this description.
There are various technical rules for Internet communication. One of them is that character strings with multiple symbols in succession are improper. Email addresses that do not follow this rule will sometimes not function normally. (You still might receive email, but it will be an email address with a high possibility of error.)

Kosokubus.com sends various communications via email. In order to have a smooth boarding, please use an appropriate email address for these communications. For customers who have already registered, please use another email address and change the membership registration.

If you cannot resolve the problem, please send an inquiry from the "Contact us" form.
A representative will send a reply the following business day. (※ Japan time)

Please be carefull

Not receiving an email does not mean your reservation was rejected.
After a reservation is completed, a notification email to that effect is sent. Sometimes, however, the reservation is made, but an email is not received.

If you don't know whether the reservation has been made, please send an inquiry to Kosokubus.com.
Sometimes it is the case that because someone registered with the wrong email address, they do not receive a confirmation email and cannot login to My Page.We will check your reservation status, so please send an inquiry.

If the email does not arrive, do not rebook. Please contact us via the inquiry form.
Once in a while, a customer will think the reservation did not go through because they did not receive an email, so they will create another membership account and make a reservation with a different email address.
However, in this case, there will be two reservations with the same content.
In such cases, it will be treated as a normal cancellation, and a cancellation charge will be applied.

In the event that you do not receive an email and you neither board nor cancel, we will not be able to issue a refund.
If we receive a nondelivery email inquiry outside of business hours, we will take care of it the following business day. If we receive an inquiry outside of business hours and the departure time is before business hours, we will respond during business hours. ※ Japan time)

Please read the contents carefully and register with the proper membership information.
For Internet reservations, there is the advantage that they are available anytime, anywhere.
On the other hand, for normal operation it is essential that the customer registers properly and thoroughly reads the information published for customers.
We are sorry to impose during your busy schedule, but we ask that you please read over the important points and enter the information carefully.