Spammers Request Read Receipt

I've noticed a new quirk with spam messages coming through - they're now requesting a read receipt. Now, this isn't a problem unless your mail system is set to automatically return a read receipt - you'll be responding to spammers without even realising.

If you do have 'Always send' selected, then make sure it doesn't respond to mailing lists or alternatively set the option to 'Never send a read receipt' or 'Notify me'.

No point in letting the spammers know that they've hit a valid address, not that they won't find it anyway, somehow.