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Can't send e-mail through Outlook.....

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I can recieve e-mail to my Outlook Express but cannot send anything at all using my new DSL line through AT&T.

Code 550 is in the delivery failure e-mail.

However, I CAN send and receive when I go back to dial-up through AT&T (Bellsouth)

Help please :-)

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Neil Jones

Neil Jones

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Code 550 is almost always caused by you trying to send email through an internet provider when you're not connected to them.
Therefore the solution, as you've found, is to connect to the other provider and send your mail then.
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Did you reconfigure your email settings for the DSL account, I know you are still with AT&T but it is quite possible that some settings might need changed. Most notably to enable SMTP Authentication.
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