Rated 4 out of 5 stars

by ConsulVenbCN on June 10, 2026 ·

Es muy buen complemento, llevo mas de 5 años usandolo, SIN EMBARGO, desde hace una semana no están funcionando el Export de mensajes EML con archivos incrustados y tampoco el índice de cabeceras, supongo que deben actualizar la versión.

by Christopher Leidigh (Developer) on June 10, 2026 ·

ConsulVenbCN
Gracias!

I think from your description it sounds like you are getting files named
undefined.eml. This was a problem with some configuration issues with v15.0.0 which released last week. If that matches your problem there is a simple fix. You just have to go to Options, change nothing and click OK.

However, since you are exporting to EML, and presumably in Spanish, there is another issue with certain characters not being exported correctly.

If that is possible in your case you should download the beta v15.0.1-b1 that fixes both issues.

Here is a link to the first issue :

https://github.com/thunderbird/import-export-tools-ng/issues/898

Here is a link for the beta information :

https://github.com/thunderbird/import-export-tools-ng/issues/906

Finally, if you still have a problem, please post an issue in the Github repository where we can have a discussion.

https://github.com/thunderbird/import-export-tools-ng/issues

Saludos,
Christopher