A method for a mobile email client to access to a server, comprising: determining a type of an access point that connects the mobile email client and the server according to information of the access point; establishing a data link between the mobile email client and the server according to the determined type of the access point; performing data exchange between the mobile email client and the server; characterized in that, the step of determining the type of the access point that connects the mobile email client and the server comprises: reading the information of the access point that establishes the data link between the mobile email client and the server according to account information configured in the mobile email client; and determining whether the type of the access point is a network net/web access, or a wireless application protocol, WAP, access; wherein when the type of the access point is determined to be the WAP access, the step of establishing the data link between the mobile email client and the server comprises: connecting the mobile email client to the server directly, and establishing the data link between the mobile email client and the server directly when the server returns a correct response; and establishing the data link between the mobile email client and the server through a gateway when the server returns an incorrect response. determining a type of an access point that connects the mobile email client and the server according to information of the access point; establishing a data link between the mobile email client and the server according to the determined type of the access point; performing data exchange between the mobile email client and the server; characterized in that, the step of determining the type of the access point that connects the mobile email client and the server comprises: reading the information of the access point that establishes the data link between the mobile email client and the server according to account information configured in the mobile email client; and determining whether the type of the access point is a network net/web access, or a wireless application protocol, WAP, access; wherein when the type of the access point is determined to be the WAP access, the step of establishing the data link between the mobile email client and the server comprises: connecting the mobile email client to the server directly, and establishing the data link between the mobile email client and the server directly when the server returns a correct response; and establishing the data link between the mobile email client and the server through a gateway when the server returns an incorrect response. reading the information of the access point that establishes the data link between the mobile email client and the server according to account information configured in the mobile email client; and determining whether the type of the access point is a network net/web access, or a wireless application protocol, WAP, access; wherein when the type of the access point is determined to be the WAP access, the step of establishing the data link between the mobile email client and the server comprises: connecting the mobile email client to the server directly, and establishing the data link between the mobile email client and the server directly when the server returns a correct response; and establishing the data link between the mobile email client and the server through a gateway when the server returns an incorrect response. connecting the mobile email client to the server directly, and establishing the data link between the mobile email client and the server directly when the server returns a correct response; and establishing the data link between the mobile email client and the server through a gateway when the server returns an incorrect response.