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Mail delivery failure on one address only

  • 4 cavab
  • 5 have this problem
  • 14 views
  • Last reply by Bobajob1

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I use Thunderbird through my TalkTalk webmail but I consistently get mail delivery failure to one important address. If I send mail to the recipient using T/T webmail then delivery is not a problem. The recipient ( my solicitor! ) is having no problem receiving mail from other sources. Any suggestions please? I've removed the the item and reinstalled it in my address book, but to no avail.

I use Thunderbird through my TalkTalk webmail but I consistently get mail delivery failure to one important address. If I send mail to the recipient using T/T webmail then delivery is not a problem. The recipient ( my solicitor! ) is having no problem receiving mail from other sources. Any suggestions please? I've removed the the item and reinstalled it in my address book, but to no avail.

Chosen solution

This looks like your email provider got onto a spam blacklist, and hence the recipients mail server won't accept mail from your provider's mail server. http://www.dnsbl.info/

Talk to your email provider. You can also follow the link in the error message for more information. It is by no means a Thunderbird problem.

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All Replies (4)

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I consistently get mail delivery failure

Care to mention what the error message is? Please post the entire error message.

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Hello christ1

entire message (minus the recipient's name) as follows:

The following message to <> was undeliverable. The reason for the problem: 5.1.0 - Unknown address error 554-'5.7.1 Service unavailable; [62.24.202.73] DNSBL blocked, reason:http://dnsbl.invaluement.com/lookup/?item=62.24.202.73'


Reporting-MTA: dns; out.ipsmtp1nec.opaltelecom.net

Final-Recipient: rfc822; Action: failed Status: 5.0.0 (permanent failure) Remote-MTA: dns; [91.233.129.11] Diagnostic-Code: smtp; 5.1.0 - Unknown address error 554-'5.7.1 Service unavailable; [62.24.202.73] DNSBL blocked, reason:http://dnsbl.invaluement.com/lookup/?item=62.24.202.73' (delivery attempts: 0)

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Seçilmiş Həll

This looks like your email provider got onto a spam blacklist, and hence the recipients mail server won't accept mail from your provider's mail server. http://www.dnsbl.info/

Talk to your email provider. You can also follow the link in the error message for more information. It is by no means a Thunderbird problem.

Modified by christ1

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Many thanks christ 1, will do as you suggest.