Hi,
One of our ladies at work here has just set up Windows mail on her Vista laptop to accept her Tiscali email. The laptop is connected to our network but is not a member of our domain as it is Vista Home premium and therefore cannot be connected to a domain. So, she cannot use our company's normal email system.

She can receive email from Tiscali but when she sends email she gets the following error message: -

An unknown error has occurred. Subject 'Re: CA aout et septembre 2008',
Account: 'pop.tiscali.co.uk', SERVER: 'smtp.tiscali.co.uk', Protocol: SMTP,
Server Response: '554 Sorry, your non-local IP address (213.128.239.19) is not
allowed to send email via me.', Port: 25, Secure(SSL): No, Server Error: 554,
Error Number: 0x800CCC6F

I understand that this MAY be due to a clash between our ISP and Tiscali. Is there any WAY around this?

ThanksBy changing from a Tiscali account to a Yahoo.co.uk account, the problem was solved.

Tiscali must be blocking the passing on of email from one isp to another before sending it on to the recipient. Yahoo allows this though!