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Problem with Transferring E-Mails

  • How do I transfer E-Mails to imap.mail.yahoo.com without a Content-Length header using IMAP when the E-Mails did not have a Content-Length header in the first place? 2 headers that Yahoo! mail adds for incoming E-Mails are X-Apparently-To and Content-Length header? The E-Mails are able to be transferred to Yahoo! mail without the X-Apparently-To header but the Content-Length header still shows up as a header on the E-Mails even though the E-Mails did not have a Content-Length header in the first place. The Content-Length headers prevents the E-Mail from being original during transfer to Yahoo! mail also it changes the MD5 hash of the E-Mails which people don't want because the Content-Length headers modify the E-Mails. How do I prevent this annoying header from appearing on E-Mails that are transferred to Yahoo! mail using IMAP.

  • Don't know. If the IMAP server is adding the content-length header, there's not much that Opera can do about it. Opera doesn't support editing headers of messages. Even if it did, that'd probably involve uploading the modified copy and deleting the original where the content-length header would just be added back in when the modified copy is uploaded.

    I tested (in Thunderbird) and can confirm your issue. It's just what Yahoo does. I guess you could ask yahoo support about it.

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