Hello,

After several tests, it appears that Outlook is one of the rare email client that duplicates the CR LF in the text/plain part of a MIME message using US-ASCII charset and 7bit content transfer encoding. If I catch the network stream and remove the HTML part of the MIME message and record it to .elm , when I open this file with Outlook, it prints the result with twice more CR LF than the original message.

So, why Outlook duplicates CR LF in this text/plain part ?

Can it be avoid ?

Thanks

Hi,

For this issue, since it's about how Outlook processes the CR LF on the encoding level, I suggest you open an advisory ticket to get more appropriate support.

Regards,

Melon Chen

Forum Support