When filling in the credit card application form, it is recommended to choose a stable and convenient email provider, such as 163, Sina, gmail, QQ, etc. The above mail providers have good stability and security, and can send and receive emails normally, so as to ensure that applicants can receive credit card-related notices and emails in time. When filling in the e-mail address, be sure to fill it accurately to avoid mistakes and omissions. E-mail address is one of the important contact information in the process of credit card application. If the information is wrong or omitted, the applicant will not receive important credit card application results or relevant notices in time.