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From "Jens Wilmer (JIRA)" <mime4j-...@james.apache.org>
Subject [jira] [Created] (MIME4J-196) Lenient parsing of Mailadresses should be a little more lenient
Date Tue, 19 Apr 2011 14:04:05 GMT
Lenient parsing of Mailadresses should be a little more lenient
---------------------------------------------------------------

                 Key: MIME4J-196
                 URL: https://issues.apache.org/jira/browse/MIME4J-196
             Project: JAMES Mime4j
          Issue Type: Wish
          Components: parser (core)
            Reporter: Jens Wilmer
            Priority: Trivial


Parsing a mailaddress as in https://issues.apache.org/jira/browse/MIME4J-31 results in a ParseException.
Parsing a mailaddress starting with a dot (.) results in a ParseException.
When parsing an addressfield with multiple adresses, the Exception occuring while parsing
a single address is caught and null is returned as the resulting addresslist. (this breaks
tika as it expects an empty list rather than null)

It would be nice if invalid addresses would be handled more gracefully when in lenient mode.
And it would be nice if at least the correct addresses would be returned while parsing an
addresslist with a corrupted address.


I am using Mime4J via the Apache Tika project to extract text from emails for indexing in
Lucene. The textstream of tika is directly read by a lucene field and indexing fails if an
exception is thrown by Mime4J. This currently happens every time a headerfield contains more
than 1000 characters due to tika using the unusable mime4j standardconfiguration ( https://issues.apache.org/jira/browse/TIKA-640
), and every time a malformed emailaddress is encountered ( https://issues.apache.org/jira/browse/TIKA-641
). 

These problems can be taken care of in Tika, but there is no way for Tika to retrieve the
working mailaddresses out of a list, if Mime4j returns only none; maybe this problem could
be addressed in Mime4J.


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