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This is what it says when I try to send a email from Thunderbid

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  • Last reply by Zenos

Websz1
Websz1
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An error occurred while sending mail: The mail server sent an incorrect greeting: ob2-rs.midco.net cmsmtp vUhqeALv9Pf8Z 69.9.192.217 listed on Spamhaus XBL. Please see http://www.spamhaus.org/xbl for more information. ESMTP server not available.

An error occurred while sending mail: The mail server sent an incorrect greeting: ob2-rs.midco.net cmsmtp vUhqeALv9Pf8Z 69.9.192.217 listed on Spamhaus XBL. Please see http://www.spamhaus.org/xbl for more information. ESMTP server not available.

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Zenos
Zenos
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"listed on Spamhaus XBL"

Your ISP or email provider has been blacklisted. You need to tell them so they can negotiate with spamhaus to get de-listed.

https://en.wikipedia.org/wiki/The_Spamhaus_Project