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https://issues.apache.org/jira/browse/PROTOCOLS-106?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17410161#comment-17410161
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Benoit Tellier commented on PROTOCOLS-106:
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This needs to be tested. I have some POP3 customers around.
CC [~kotto]
> CRLFTerminatedInputStream does not do what it is supposed to. Missing CR if
> last char is \n Outlook hangs forever DL messages
> -----------------------------------------------------------------------------------------------------------------------------
>
> Key: PROTOCOLS-106
> URL: https://issues.apache.org/jira/browse/PROTOCOLS-106
> Project: James Protocols
> Issue Type: Bug
> Components: pop3
> Affects Versions: 1.6.2
> Reporter: Steve
> Assignee: Eric Charles
> Priority: Major
>
> A message transfer to a pop3 client is finished when the server issues
> CRLF DOT CRLF
> However this is not always the case with the current implementation.
> The method
> private void calculateExtraData() {
> 109 if (last == '\n') {
> 110 extraData = null;
> 111 } else if (last == '\r') {
> 112 extraData = new byte[1];
> 113 extraData[0] = '\n';
> 114 } else {
> 115 extraData = new byte[2];
> 116 extraData[0] = '\r';
> 117 extraData[1] = '\n';
> 118 }
> 119
> 120 }
> Does not factor in when the last byte is "\n" but the one before is NOT "\r"
> - meaning the resulting output to the client is actually
> LF DOT CRLF
> Outlook will hang forever because it does not see a termination of the
> message. (See POP3 RFC - it MUST be CRLF DOT CRLF - Thunderbird is not as
> strict tho)
> A java MimeMessage is not guaranteed to be canoniclized by CRLF - see
> http://www.oracle.com/technetwork/java/faq-135477.html#repres
> The current workaround is to implement Mailbox and overwrite public
> InputStream getMessage(String uid) to always make sure the message stream
> ends with a CRLF.
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