webapp creates blank X-Original-To: header
Webapp 22.214.171.1245-0+594.1 creates a X-Original-To: header that is blank. This really breaks the recipient end where fetchmail is involved using this header.
Removing line 835 of server/includes/core/class.properties.php fixes this.
853 #$properties["x_original_to"] = "PT_STRING8:PS_INTERNET_HEADERS:x-original-to";
I’ve removed this code since it doesn’t do anything in a cleanup PR which hopefully will be merged in the next release.