Is the invitation letter of Bank of Communications credit card sent by qq mailbox true?

False, the invitation letter of Bank of Communications credit card will not be sent to your QQ mailbox. In this case, you can call the customer service of Bank of Communications.

How to prevent mail fraud?

First, don't click on links, pictures and files in unknown emails, because these files may contain viruses and Trojans;

2. When using the email address as the website registration user name, you should set a website password different from the original email password to avoid the information of the email and website being stolen after the password is cracked;

Third, properly set the prompt problem of retrieving the password;

Fourth, when you receive emails related to personal information and money (such as winning prizes, fundraising, etc. ), you should be vigilant.