Yes, that makes it much easier to find where the warning originates:

The warning comes from Email::MIME::ContentType line 106:

    if ($STRICT_PARAMS and length $ct and $ct !~ /^;/) {
        carp "Missing semicolon before first Content-Type parameter '$
+ct'";

[download]

So, one very simplistic workaround is to set $Email::MIME::ContentType::STRICT_PARAMS to 0 to suppress this warning.

I don't know where/why the content type string goes awry, but that's to debug another day...

In reply to Re^3: Email::MIME support for utf8 filename by Corion
in thread Email::MIME support for utf8 filename by Arik123

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