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Mailcore(2503)

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david360
david360
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Since yesterday whenever I try to send an email by Thunderbird I get 'An error occurred while sending mail. The mail server responded: Mailcore(2503): Your email was detected as spam. SA (RCPTs:'

If I use Supanames on the same computer with the same email account it works fine. A different Thuderbird account on the same computer has the same problem.

Help.

Since yesterday whenever I try to send an email by Thunderbird I get 'An error occurred while sending mail. The mail server responded: Mailcore(2503): Your email was detected as spam. SA (RCPTs:' If I use Supanames on the same computer with the same email account it works fine. A different Thuderbird account on the same computer has the same problem. Help.

所有回复 (2)

david360
david360 提问者
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And it's now OK after 36 hours of problems!

Matt
Matt
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usually these sort of issues are caused by changed server side to the way providers scan for spam. Some are even bone headed enough to apply incoming spam rules to mail being sent by their customers.

Some information I looked at linked the issue to Kaspersky others said it had something to do with relaying hosted email. I can see both being reasonable explanations in their own way..