Patent ID: 11916858
Assignee: SOPHOS LIMITED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for mitigating outbound electronic message spam, comprising:
determining, by one or more processors of a computer system, whether an outbound electronic message to a recipient sent from an electronic messaging account of a sender has at least a predetermined number of indicators of compromise, wherein determining whether the outbound electronic message includes at least the predetermined number of indicators of compromise includes:
determining, by the one or more processors, whether a database containing senders known to have sent one or more spam precursor electronic messages includes the sender of the outbound electronic message; and/or
determining, by the one or more processors, whether a database containing recipients of the one or more spam precursor electronic messages includes the recipient of the outbound electronic message;

sending, by the one or more processors, the outbound electronic message to the recipient using an Internet Protocol (IP) address from a first pool of service delivery IP addresses in response to a determination that the outbound electronic message has less than the predetermined number of indicators of compromise; and
sending, by the one or more processors, the outbound electronic message to the recipient using an IP address from a second pool of service delivery IP addresses in response to a determination that the outbound electronic message has at least the predetermined number of indicators of compromise.