public void setHeaders(final Message message, final Map<String, String> msgMap, final DataType dataType, final String address, final @NonNull PersonRecord contact, final Date sentDate, final int status) throws MessagingException { // Threading by contact ID, not by thread ID. I think this value is more stable. message.setHeader(Headers.REFERENCES, String.format(REFERENCE_UID_TEMPLATE, reference, contact.getId())); message.setHeader(Headers.MESSAGE_ID, createMessageId(sentDate, address, status)); message.setHeader(Headers.ADDRESS, sanitize(address)); message.setHeader(Headers.DATATYPE, dataType.toString()); message.setHeader(Headers.BACKUP_TIME, toGMTString(new Date())); message.setHeader(Headers.VERSION, version); message.setSentDate(sentDate, false); message.setInternalDate(sentDate); switch (dataType) { case SMS: setSmsHeaders(message, msgMap); break; case MMS: setMmsHeaders(message, msgMap); break; case CALLLOG: setCallLogHeaders(message, msgMap); break; } }