Hello. I have a Talk Talk / Tiscali Account with Thunderbird E-mail. Everything was working fine until half-an-hour ago when I got an error message TT602 when attempting to send an E-mail. ( previous E-mails sent earlier had worked OK ) I checked my in-coming and out-going server settings and they are all as recommended by Talk Talk. Also went on-line to check the Talk Talk connection and all showing up as OK. Does anyone know what the problem can be ? Many thanks. SG