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Convert the body to uppercase before parsing #641

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Convert the body to uppercase before parsing #641

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5 changes: 4 additions & 1 deletion lib/Connection.js
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Original file line number Diff line number Diff line change
Expand Up @@ -213,7 +213,10 @@ Connection.prototype.connect = function() {
// because 'HEADER.FIELDS (TO FROM)' really is equivalent to
// 'HEADER.FIELDS ("TO" "FROM")' and some servers will actually send the
// quoted form even if the client did not use quotes
var thisbody = parseExpr(info.which);
// It also converts the body to upper case, since the IMAP RFC
// states that flags should be matched in a case insensitive
// manner.
var thisbody = parseExpr(info.which.toUpperCase());
for (var i = 0, len = toget.length; i < len; ++i) {
if (_deepEqual(thisbody, toget[i])) {
toget.splice(i, 1);
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