Contributor
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1 Message
6.6.0 Error sending email
After 20+ years sending emails through ATT.net, we are getting an error message "An error occured while sending mail. The mail server responded 6.6.0 Error sending message for delivery. Please check the message and try again."
We have spent *HOURS* on the phone with ATT but nobody knows what a 6.6.0 error is. They suggested I pay "Connectech" for help . . . even though it is clearly ATT's server sending me the message.
Nothing has changed here – so what's the problem???????????????
ATTHelp
Community Support
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231.6K Messages
5 years ago
Hello @Anthjas,
We're happy to look into this for you!
Do you get this message regardless of the content of the email?
When did you start receiving the message?
What troubleshooting steps have you tried already?
Aminah, AT&T Community Specialist
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