Recognized reply prefixes Emails with certain prefixes trigger inbound email actions of the type reply. When no watermark or is present or the In-Reply-To email header is present, the instance recognizes email containing a prefix from the glide.email.reply_subject_prefix property as reply email. When this property is set, your email system uses non-standard reply prefixes. Table 1. Specifying recognized reply prefixes Property Description glide.email.reply_subject_prefix Specifies the list of prefixes (comma-separated) in the subject line that identify an email reply. Type: string Default value: re:,aw:,r: Location: Add to the System Properties [sys_properties] table Note: Prefixes are case insensitive.