Patent ID: 8825771

Claim:
A mail receiving server comprising a processor and memory, cooperating to function as: a mail receiving unit configured to execute processing of receiving mail; a first mail box for storing the received mail; a determining unit configured to execute processing of checking, at the time of receiving the mail by the mail receiving unit, whether or not a vacant capacity capable of storing the received mail exists in the first mail box corresponding to a mail address described in a delivered destination of the received mail; a storage space for storing the mail as receiving error mail when it is checked that the first mail box has no storable vacant capacity by the determining unit; an extracting unit configured to execute processing of extracting header information and body information from a plurality of the receiving error mails stored in the storage space; an information notice mail managing unit configured to execute processing of generating information notice mail for notifying information regarding the receiving error mail to the mail address described in the delivered destination of the receiving error mail by using the header information and the body information of the receiving error mails extracted by the extracting unit, wherein the information notice mail includes a first information notice mail and a plurality of second information notice mails, the first information notice mail being generated based upon the header information of the plurality of the receiving error mails, and the second information notice mails being generated based upon the header information and the body information of each of the receiving error mails; and a second mail box for storing the information notice mail generated by the information notice mail managing unit.