User Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; Media Center PC 5.0; SLCC1; Tablet PC 2.0; .NET4.0C; Zune 4.7; BRI/2) Steps to reproduce: Running TB 8.x beta... (also occurred when reverted to 7.x release). Sending email with inline inserted images... (also, box checked to 'Attach this image to the message')... NO alternate text... NO 'text-only' settings, just normal HTML email... Actual results: ...resulted in email sent with-out- images, in text-only mode. Sent folder copy stripped of images. Expected results: Just as email with images was sent the previous day, email with inline inserted images should have been sent with images inserted inline in the email. I had to actually 'Attach' the image files to get them sent along with an email. I temporarily reverted to 7.x release version of TB and the image stripping continued. I tried a new profile, and inserted images were sent fine... I returned to default profile and investigated text/html settings... tried various combinations, tried signature with HTML in it... still, all images were stripped, signature was forced text-only. NO text-only settings were active, except... I noticed that 'Send options' 'Plain Text Domains' had been set (to various cellular txting address -sub-domains). I do -not- remember adding those subdomains to the "Plain Text Domains" box in Options, Composition tab, Send Options... button. These subdomains were -not- the same domains to which I sent HTML email with images. (see examples below) Final result is that, until this anomaly is cleared... I will have to clear ALL domains from the 'Plain Text Domains' in order to ensure that I can send inline inserted images to email addresses which happen to be in the greater domain addressing space, outside of the txting cellular subdomain. For example... I cannot set "mobile.gci.net" (without quotes) for plain text to send text-only email to cellular txt addressing such as 9075551212@mobile.gci.net... IF I want to be able to also send email with inserted images to anyone in the gci.net domain, such as "anyone@gci.net". I do not remember entering the cellular subdomains... wondering if TB somehow auto-entered them as recognized texting addresses. Again, if "mobile.gci.net" domain was present in 'Plain Text Domains', then I could -not- send images inserted inline to (anyone)@gci.net. If I removed 'mobile.gci.net' from "Plain Text Domains", then I -could- send images inserted inline to (anyone)@gci.net addresses. Note the difference... gci.net vs mobile.gci.net ...perhaps the same anomaly would occur for "txt.att.net" vs email@att.net!

Bug suddenly appeared from one day to the next with no known changes to settings. Simply sending email with images as normal one day, and the next... couldn't send inline images, email was forced text-only. Not sure what triggered change.

> Again, if "mobile.gci.net" domain was present in 'Plain Text Domains', > then I could -not- send images inserted inline to (anyone)@gci.net. > If I removed 'mobile.gci.net' from "Plain Text Domains", > then I -could- send images inserted inline to (anyone)@gci.net addresses. Bug 647522 is opposite complaint on Tb's behavior. xref that bug. In that bug, report is "if debian.org in text-only domain, mail to debian.org or @bugs.debian.org is always sent in unwanted HTML format instead of expecting text mail". For workaround of your case. Can you send mail in HTML regardless of text-only domain setting, by Options/Format/"Plain and Rich(HTML) Text" or "Rich Text(HTML) Only" at mail composition window? By the way, please rule out phenomenon of bug 414299(sent in text instead of expecting HTML if text only HTML mail. see also bug 136502) from your bug report if such phenomenon is involved in your case, because your case is "sent in unwanted text mail instead of expecting HTML".

> Bug suddenly appeared from one day to the next When exactly? Can we have a regression range?

RpD, your bug report is very confusing. First, you state > NO 'text-only' settings then you say > I noticed that 'Send options' 'Plain Text Domains' had been set which is a direct contradiction. That you discovered the latter only later doesn't matter. Please see various guidelines on how to do write clear bug reports. > I cannot set "mobile.gci.net" (without quotes) for plain text to send text-only > email to cellular txt addressing such as 9075551212@mobile.gci.net... > IF I want to be able to also send email with inserted images to anyone > in the gci.net domain, such as "anyone@gci.net". This sounds like a DUP of bug 401014.

(In reply to RpD from comment #1) > Simply sending email with images as normal one day, > and the next... couldn't send inline images, email was forced text-only. When images was sent, recipient's mail address was registered in address book with text/html preference=HTML, wasn't it?