18. The system of claim 12 , wherein the first server is configured to: responsive to categorizing a first message under the first category, select a content item suitable to include in a second message responsive to the first message; and transmit the second message including the content item to the second server to provide, for display, on a computing device at which the first message was originated.
18. The system of claim 12 , wherein the first server is configured to: responsive to categorizing a first message under the first category, select a content item suitable to include in a second message responsive to the first message; and transmit the second message including the content item to the second server to provide, for display, on a computing device at which the first message was originated. 19. The system of claim 18 , wherein the content item includes one of a coupon, a code, a link or an offer to purchase a product or service identified by one or more words included in the first message.