Hello, My email is [email protected], and I use recent: [email protected] in order to get sent mails back to inbox folder. It works perfectly till now, but not more than a couple days ago sending composed message leads to error message that From address is invalid. Really, Thunderbird inserts quotation signs in my address and try to send mail to address something like "recent:i.spectorsky"@gmail.com. When I delete quotations, mail can be sent. So, why this problem appears, and how to get rid of it? Thanks in advance