Hi Junio, My email server (zoho) puts leading UTF-8 non-breaking spaces ("\xC2\xA0") when folding long mail headers. Due to this, git-am is failing as it expects only '\t' or ' ' characters. RFC2822 [1] on page 7 states: > The general rule is that wherever this standard allows for folding white > space (not simply WSP characters), a CRLF may be inserted before any WSP. It appears the RFC isn't too strict about ASCII only headers (correct me if I'm wrong here); ergo, if the mail file is in UTF-8, isn't logical to expect UTF-8 whitespace characters also to be allowed in the fold/unfold of headers? I was able to get git-am to work with modifications to read_one_header_line() in mailinfo.c need your view on whether a patch is necessary for this. If so, I can send a patch for this. Thanks Sid. Footnotes: [1]: https://www.ietf.org/rfc/rfc2822.txt