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why are my emails coming back undeliverable only in mozilla but not in webmail (this also means i cannot send emails on my phone either)

marypl2
marypl2
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i cannot send emails from mozilla now i am getting errors such as this The reason for the problem: 5.1.0 - Unknown address error 554-'5.7.1 Service unavailable; [216.221.81.70] DNSBL blocked, reason:http://dnsbl.invaluement.com/lookup/?item=216.221.81.70'

and that means i cannot send on my phone or ipad since my emails are connected but i can send via webmail

i cannot send emails from mozilla now i am getting errors such as this The reason for the problem: 5.1.0 - Unknown address error 554-'5.7.1 Service unavailable; [216.221.81.70] DNSBL blocked, reason:http://dnsbl.invaluement.com/lookup/?item=216.221.81.70' and that means i cannot send on my phone or ipad since my emails are connected but i can send via webmail

All Replies (1)

user01229325
user01229325
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The error is from your providers SMTP server. Web mail does not use that server. Thunderbird does not run on phones or tablets. Simple deduction says this is not a Thunderbird issue.

Contact your provider and tell them the error you are getting. Clicking the link indicates that you provider is blacklisted due to spam or other inappropriate content.