String contentType = EmailHeaders.CONTENT_TYPE + ": " + msg.getContentType(); if (msg.getCharacterSet() != null && msg.getCharacterSet().trim().length() != 0)
String contentType = EmailHeaders.CONTENT_TYPE + ": " + msg.getContentType(); if (msg.getCharacterSet() != null && msg.getCharacterSet().trim().length() != 0)