For more than a week my wife and I have been unable to send emails from our TalkTalk accounts. Incoming emails are not affected. The error messages are:
Server Error: 500
Server Response: 500 5.1.1 aTK0fRBXcdJAe IP Blacklisted (TT504)
Windows Live Mail Error ID: 0x800CCC79
What could have caused this and how can we correct it?
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You've got an interesting collection of errors there. A bit of troubleshooting will be needed.
First, please ensure your Community Profile Personal Information (Click here) includes your TalkTalk landline phone number and an alternate number (mobile recommended). Add, then scroll down and add the talktalk email addresses to the Private Notes box and save changes. The TalkTalk Community support OCE will then be able to link to your TalkTalk service account and email accounts.
Next use webmail and check you can log in and send each other emails. i.e. talktalk to talktalk email.
The error 500 usually indicates a syntax error which in turn often means that an anti-virus or security software is upsetting your email client. Temporarily pause / disable anti-virus whilst troubleshooting. There have been issues with Kaspersky and Avast products.
The IP Blacklisting report might indiate that your personal IP address has been linked to suspicious activity. Check your IP address click here. Just switch off your router for a few minutes (if on a standard Broadband connection) or 30 minutes (if on a fibre to the cabinet Broadband connection) to see if a new IP address is allocated.
Worth checking the settings for your email client. Note that password encryption is not used so any reference to Secure Password Authentication do not use and Password Authentication is by Normal Password i.e. your email address as the username and the email password as a plain password without encryption and the same password settings for outgoing and incoming email. You'll need to check the email client as to whether it's set up for IMAP or POP3 protocol and use the appropriate port number.
The TalkTalk.net email settings you need are:
|Account Type||IMAP (recommended)||POP3|
|Login / Usernameemail@example.comfirstname.lastname@example.org|
|Incoming mail server||mail.talktalk.net||mail.talktalk.net|
|Outgoing mail server||smtp.talktalk.net||smtp.talktalk.net|
Hi David3645, some great advice from Gondola there. Let us know if this has got your problem sorted.
Thanks very much for the reply. After re-booting the modem several times everything is now working. My wife is the secretary of a U3A group with about 30 members and I wonder if her emails to the group might have been considered spam and caused the blacklisting.