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Email sent from Thunderbird is rejected by servers

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  • Last reply by Matt

jlems
jlems
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Over the last few months I've noticed many of our clients' email servers rejecting mail sent by me via Thunderbird. When I send mail or reply to mail via iphone, ipad, or the web client for gmail (our mail is hosted by gmail for business) there isn't a rejection (typically a 554 denied, rejected by server; or 554 service unavailable, client host blocked using barracuda reputation. I had an html signature with an attached logo for a while, which is when this seems to have started but may just be a coincidence. I've since removed the logo and html signature but the errors continue...

What can I do? I don't know of a better way to handle email on my Mac.

Over the last few months I've noticed many of our clients' email servers rejecting mail sent by me via Thunderbird. When I send mail or reply to mail via iphone, ipad, or the web client for gmail (our mail is hosted by gmail for business) there isn't a rejection (typically a 554 denied, rejected by server; or 554 service unavailable, client host blocked using barracuda reputation. I had an html signature with an attached logo for a while, which is when this seems to have started but may just be a coincidence. I've since removed the logo and html signature but the errors continue... What can I do? I don't know of a better way to handle email on my Mac.

All Replies (1)

Matt
Matt
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If your on a reputation blocklist I suggest you contact them about what you need to do to be removed see http://www.barracudacentral.org/rbl/listing-methodology

You might also ask your business host how you managed to get on a blocklist. (being on a shared server for your hosting with a spammer is usually the way it happens)