Delivery Reports

Unfortunately, delivery reports from Japanese numbers are unreliable and can be fake.

URLs

It is not allowed to send URLs in your messages. Messages that contain a weblink are classified as illegal and are either discarded completely or a part of the illegal text will be removed.

Operator-Specific Restrictions

DoCoMo A maximum of 160 bytes/160 standard characters per SMS applies

Softbank A maximum of 160 bytes/160 standard characters per SMS applies

KDDI A maximum of 100 bytes/100 standard characters per SMS applies