Thunderbird is blocking my outgoing mail as spam
An occasional outgoing message is being blocked as spam. I am getting an Alert box from Thunderbird with the message, "An error occurred while sending mail. The mail server responded: This message was classified as SPAM and may not be delivered. Please check the message and try again." While this says it is from the server, here are reasons I think it is from Thunderbird:
(1) I contacted my email service's tech support. We went through a number of things that ascertained it didn't have anything to do with the filters they knew about.
(2) I tried sending it through a different mail service altogether (AOL mail, which I get through Verizon, rather than my web service's email). Same failure message.
(3) I cut and pasted the entire message verbatim -- including subject and all recipients -- into the send screen of my web service's webmail (Squirrel Mail). It was sent no problem. Their tech support assured me that webmail goes through the same server with the same spam screening as direct from my PC (which would be Thunderbird).
That was today's experience. I had the same thing happen once before, with the same results, on Nov 11, a little over a week ago. The only things the messages had in common were: (a) they were long messages, and (b) they had considerable context from a prior message; they were replies. The context lines were preceded by '>', as Thunderbird does for context. The differences from the Nov 11 message were: (a) this was multi-recipient, the other was single recipient, and (b) I interspersed my comments in the context, whereas the other I just put all my comments before the context.
Hope this is enough info to help solve it.
All Replies (1)
dtutelman said
(1) I contacted my email service's tech support. We went through a number of things that ascertained it didn't have anything to do with the filters they knew about.
Not relevant. ISP tech support is a misnomer. It is neither tech nor support. Unfortunately the same can also be said of most web hosting companies. It is about hiring people without technical skills to read from scrips generated by artificial intelligence or expert systems that are not.
(2) I tried sending it through a different mail service altogether (AOL mail, which I get through Verizon, rather than my web service's email). Same failure message.
Just a guess on my part but I bet your web mail you are talking about is Yahoo. AOL,Yahoo and Verizon are the same company and the same broken infrastructure.
(3) I cut and pasted the entire message verbatim -- including subject and all recipients -- into the send screen of my web service's webmail (Squirrel Mail). It was sent no problem. Their tech support assured me that webmail goes through the same server with the same spam screening as direct from my PC (which would be Thunderbird).
If it does it will be probably the only mail service ion the [planet that does.
That was today's experience. I had the same thing happen once before, with the same results, on Nov 11, a little over a week ago. The only things the messages had in common were: (a) they were long messages, and (b) they had considerable context from a prior message; they were replies. The context lines were preceded by '>', as Thunderbird does for context. The differences from the Nov 11 message were: (a) this was multi-recipient, the other was single recipient, and (b) I interspersed my comments in the context, whereas the other I just put all my comments before the context.
I suggest we look at the facts.
When you click send, Thunderbird contacts the SMTP server you setup for that account. IT logs in and ask to send the mail. via a series of text commands mail is transmitted and Thunderbird either get a positive acknowledgement of successful reception of an error message from the server.
You are reporting an error situation. You are also reporting a provider that disavows knowledge of how their system comes to send that exact message. Seriously. The message is not invented by Thunderbird. Although it may well be invented by your anti virus product that is set to scan out going mail. REcent trand is these poorly written and even more poorly undertood product is they set themselves up as a "local" mail server and use hacking techniques to get into an encrypted communication channel they have no place being. Once they do that they sometimes pretend to be the mail server, so Thunderbird thinks it is in communication with your mail provider. Other times they simply mess up and no mail goes out for absolutely no reason the consumer can establish. They feel everyone is blaming the other and they continue to pay for the questionable services of the product that causes all the grief because it is not the product popping up the error messages.
If you trust your provider's advice, I would be looking at the middle man (anti virus).
Either way. please add the troubleshooting information to your post To find the Troubleshooting information:
- Open Help (or click on three-line-icon and select Help)
- Choose Troubleshooting Information
- Use the button Copy to clipboard to select all. Do not check box "Include account names"!
- Paste this in your post.