I'm new so be gentle with me! My problem is I can receive emails from friends on TalkTalk and REPLY to them but if I originate an email to them it is bounced back with a Code 550 Unknown User. I'm with BT and have no problems with all my other contacts. My settings and the TalkTalk addresses have been checked and another local BT user can connect to my friends using the same TalkTalk addresses. Any ideas? Thanks 560.
I have just tried again and received the following rejection message: "Mail Delivery System" [email protected] Delivery Status Notification (Failure) 5.1.0 Unknown Address. error 550 - -Unknown user Status 5.0.0 Permanent failure Diagnostic. code: smtp;5.1.0 Unknown address error 550 unknown user Reporting - MTA: DNS; TTP-4TalkTalk.net I receive the same message from both TT addresses I try to connect to.
Either you have typed the email address incorrectly or you are trying to send using a different ISP's SMTP server. Do you have more than one account listed in Outlook Express (if that's your email client)? If you do, make sure that you have your correct email address (from your own ISP) in the 'From' line of your email.
Hi Maj Thanks for your input. I only have one account listed and as I said before I do not have any trouble sending and receiving mail from all my other contacts just TT.net. I have tried sending via outlook and via BT Yahoo both with the same results. BT's Help are baffled.
Its FIXED! My contacts at TT.net complained to TT who finally admitted that they had a fault that would take 2-3 days to fix. This the third day and sure enough my emails have been delivered OK! I still don't know the nature of the fault that could be so selective in blocking mail from one address whilst my other BT contacts could send OK. Thanks for your help. It all adds to the knowledge pile.
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