Arrangements described herein relate to indicating in an electronic message whether a user has previously accessed content provided by a resource. An electronic message can be received. The electronic message can include at least one uniform resource identifier. A determination can be made as to whether a user to whom the electronic message is sent has previously accessed content provided by a resource identified by the uniform resource identifier. In the electronic message, whether the user has previously accessed the content provided by the resource identified by the uniform resource identifier can be indicated.