Calibre stopped working (mobi sent, but error: There was a problem with the document

[Cooluck]

I am adding epub files to Calibre library, they are converted to mobi and sent via*hotmail.com to @kindle.com email.

But got an error from Amazon:

Dear Customer,

The following document, sent at 10:13 AM on Sun, Sep 29, 2019 GMT could not be delivered to the Kindle you specified:
* Tiepier' ia iem vsio, chto khochu - David Ian.mobi


The Kindle Personal Document Service can convert and deliver the following types of documents:
Microsoft Word (.doc, .docx)
Rich Text Format (.rtf)
HTML (.htm, .html)
Text (.txt) documents
Archived documents (zip , x-zip) and compressed archived documents
Mobi book

Images that are of type JPEGs (.jpg), GIFs (.gif), Bitmaps (.bmp), and PNG images (.png).
Adobe PDF (.pdf) documents are delivered without conversion to Kindle DX, Second Generation and Latest Generation Kindles.

Please help to fix it.

[theducks]

That message tell us very little about WHAT REAL format was sent.
The file name you sent ended with . mobi
BUT
it could be anything (someone may have changed the extension to .mobi)
The rest of the message just states the acceptable formats.


You might try and convert that file TO Mobi. That might fix internal errors

[kovidgoyal]

Make sure your MOBI type is set to old in the mobi output section of the conversion dialog. Amazon does not allow new style MOBI to be sent via email.

[Cooluck]

Originally Posted by kovidgoyal

Make sure your MOBI type is set to old in the mobi output section of the conversion dialog. Amazon does not allow new style MOBI to be sent via email.

Thanks, I'll try to change Calibre converting to old mobi.

[Cooluck]

Originally Posted by theducks

it could be anything (someone may have changed the extension to .mobi)
The rest of the message just states the acceptable formats.


You might try and convert that file TO Mobi. That might fix internal errors

Your message just states, that you don't read mine carefully:
I am adding epub files to Calibre library, they are converted to mobi and sent via*hotmail.com to @kindle.com email.

[celinego]

Originally Posted by kovidgoyal

Make sure your MOBI type is set to old in the mobi output section of the conversion dialog. Amazon does not allow new style MOBI to be sent via email.

Five days ago, suddenly mobi files I've sent to my kindle via Calibre haven't arrived. Could this be why? But I don't see an "old Mobi" option in the conversion drop down menu?

I can attach the same files to my webmail and emClient mail and they DO arrive but when sent via Calibre, they don't. Nor does any Calibre Test Mail ... unless I first run the Diagnotics tab on my emClient (I don't know if this tweaks the the incoming port settings, but whatever it does) only then does the Test mail arrive in my webmail and my emClient inbox. The mobi files don't though, they just seem to completely disappear.

And for everthing, Calibre says email successfully sent.

Any ideas please as I'm missing not having my chosen books on my kindle from my Calibre library. Many thanks.

[theducks]

The option is on Preferences: Conversion: Mobi (from sidebar).
This affects All conversions to Mobi (IN THE FUTURE)
( You need to re-convert previously done (new Mobi) ones )

[celinego]

Originally Posted by theducks

The option is on Preferences: Conversion: Mobi (from sidebar).
This affects All conversions to Mobi (IN THE FUTURE)
( You need to re-convert previously done (new Mobi) ones )

Thanks theducks. Checked it and it was already set on old mobi. So that's not the reason they're not arriving by email either