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Old 7th February 2009, 00:36
Allen15 Allen15 is offline
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Default 550 Sender verify failed

On a new setup, I get this as part of a bounce message when trying to send mail from the webmail, does anyone know what I'd need to do or where I'd need to start to fix this?

Thanx

Allen

(error message follows

<customerservice@oncall-pc.com>: host oncall-pc.com[174.132.150.226] said:
550-Verification failed for <web1_ajackson@solutionsforcare.org> 550-The
mail server could not deliver mail to web1_ajackson@solutionsforcare.org.
The account or domain may not exist, they may be blacklisted, or missing
the proper dns entries. 550 Sender verify failed (in reply to RCPT TO
command)

Last edited by Allen15; 7th February 2009 at 00:39.
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  #2  
Old 7th February 2009, 11:09
till till is offline
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Please set the correct sender address under options in the webmail program.
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Old 9th February 2009, 06:20
Allen15 Allen15 is offline
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Thanks, and I've tried setting my options in webmail prior to sending, but I am still getting errors when I send to some, but not all domains:

Final-Recipient: rfc822; customerservice@oncall-pc.com
Original-Recipient: rfc822;customerservice@oncall-pc.com
Action: failed
Status: 5.0.0
Remote-MTA: dns; oncall-pc.com
Diagnostic-Code: smtp; 550-Verification failed for
<ajackson@solutionsforcare.org> 550-The mail server could not deliver mail
to ajackson@solutionsforcare.org. The account or domain may not exist,
they may be blacklisted, or missing the proper dns entries. 550 Sender
verify failed

How do I allow a distant mail server to verify sender's validity? I get the feeling that this is some anti-spam measure that I'm up against...

Thanx

Allen
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Old 9th February 2009, 06:27
Allen15 Allen15 is offline
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Trying to dissect that error message:
Diagnostic-Code: smtp; 550-Verification failed for
<ajackson@solutionsforcare.org> 550-The mail server could not deliver mail
to ajackson@solutionsforcare.org. The account or domain may not exist,
they may be blacklisted, or missing the proper dns entries. 550 Sender
verify failed

I know that the domain exists, I can ping it, and I can browse it, and I can dig it.

How do I tell if that domain has been blacklisted, and more importantly, how do I change that? If this is a dns issue, then I can only guess that it is a reverse DNS lookup that may be failing, since I can ping/browse/dig by name, but how do I check and/or fix that too?

Thanks,

Allen
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Old 9th February 2009, 11:19
till till is offline
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I guess the others erver tries to verify your sender address and that fails. Are you able to send an email to yourself from outside?
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  #6  
Old 10th February 2009, 05:01
Allen15 Allen15 is offline
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I cannot receive any mail from outside the domain, but I can send mail <from my ISPConfig-created site & webmail> to any domain that doesn't try to verify the sender.

For whatever reason, the user I created is not allowed to receive email? (I sense another wipe and reload session coming on, but I've gotten fast enough doing it that I no longer dread it *as much* ...)
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