Inbound email attachments are now inserted in bulk, which is less resource intensive on local Attachment object triggers and will help to avoid issues with messages that include several files. (3.59)

Inbound message processing will now accept attachments with an empty body. Previously, an error would be thrown with the message, "554 System.EmailException: SendEmail failed. First exception on row 0; first error: REQUIRED_FIELD_MISSING, No body specified in the file attachment: []". (3.59)