export as .eml creates .eml files of several hundred MB each

[rzmu]

hello,

I am exporting a set of 700 emails from a folder to .eml format on windows, using this add-on because thunderbird skips some emails when I ask it to save as.
Everything looks like it's working except each emails shows as several hundred megabytes.
I stopped the export at 40 emails and now have 16GB...

The emails seem fine when opened, their size is just enormous.

This is so weird...

Would greatly appreciate any help ! I'm on thunderbird 115.9.0, windows 11, the emails are coming from an office 365 folder, if that matters.

All best,

sam

[cleidigh]

@rzmu
Very odd.
If you export a single message, let's say a random pick, does this happen?
What happens when you use ctrl-u to look at the message source?
Is there a non personal message you could privately send me?
@cleidigh

[rzmu]

I tried to export a single random message.
The message was showing as 104kb in thunderbird. After export it grew to 12MB.

Regarding ctrl+u to look at the source, I see the message, and then what looks to me like a very very long string of characters, like when you have a large attachement.