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Unable to send mail using an alternate Identity in Thunderbird.

support_moz
support_moz
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This started the 16th of May after Timewarner/Spectrum was down for an hour or so.

If I use an alternate identity I get the following error in Thunderbird.

An error occurred while sending mail. The mail server responded: 5.1.0 <otheremail@otherdns.com> sender rejected AUP#O-1030. Please verify that your email address is correct in your account settings and try again.

If I write a message with the default identity and select "Customize From Address..." I can send mail.

Sendmail also had the same issue in linux & I used telnet to debug and fix the issue. Here's a couple telnet sessions.

This started the 16th of May after Timewarner/Spectrum was down for an hour or so. If I use an alternate identity I get the following error in Thunderbird. An error occurred while sending mail. The mail server responded: 5.1.0 <otheremail@otherdns.com> sender rejected AUP#O-1030. Please verify that your email address is correct in your account settings and try again. If I write a message with the default identity and select "Customize From Address..." I can send mail. Sendmail also had the same issue in linux & I used telnet to debug and fix the issue. Here's a couple telnet sessions.

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support_moz
support_moz Question owner
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--- error ---

telnet mail.twc.com 587 220 Welcome to Road Runner. WARNING: *** FOR AUTHORIZED USE ONLY! *** ehlo mail.twc.com 250-dnvrco-cmomta02 hello [0.0.0.0], pleased to meet you 250-HELP 250-AUTH LOGIN PLAIN 250-SIZE 30000000 250-ENHANCEDSTATUSCODES 250-8BITMIME 250-STARTTLS 250 OK auth login 334 UserName UserName 334 Password Password 235 2.7.0 ... authentication succeeded mail from:otheremail@otherdns.com 550 5.1.0 <otheremail@otherdns.com> sender rejected AUP#O-1030 Connection closed by foreign host

--- working ---

telnet mail.twc.com 587 220 Welcome to Road Runner. WARNING: *** FOR AUTHORIZED USE ONLY! *** ehlo mail.twc.com 250-dnvrco-cmomta03 hello [0.0.0.0], pleased to meet you 250-HELP 250-AUTH LOGIN PLAIN 250-SIZE 30000000 250-ENHANCEDSTATUSCODES 250-8BITMIME 250-STARTTLS 250 OK auth login 334 UserName ispusername@ispemail.com <- must be the same 334 Password Password 235 2.7.0 ... authentication succeeded mail from:ispusername@ispemail.com <- must be the same 250 2.1.0 <ispusername@ispemail.com> sender ok rcpt to:anyone@anydns.com 250 2.1.5 <anyone@anydns.com> recipient ok data 354 OK From:otheremail@otherdns.com To:anyone@anydns.com Subject:test

test

. 250 2.0.0 0000000000000000000000 mail accepted for delivery Connection closed by foreign host

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