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Mail delivery failed: returning message to sender

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  • 3 have this problem
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  • Last reply by Rick

Mira C
Mira C
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Please help me, I can't reply to my Thunderbird email. This error keeps appearing. How do I fix this?

Please help me, I can't reply to my Thunderbird email. This error keeps appearing. How do I fix this?
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Rick
Rick
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What do you learn after you click on the link in the error message?