User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; de; rv:1.9.2) Gecko/20100115 Firefox/3.6 (.NET CLR 3.5.30729) Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; de; rv:1.9.1.9) Gecko/20100317 Lightning/1.0b1 Thunderbird/3.0.4 I received an email containing something like "contact Jürgen Müller at Jürgen.Müller@xyz.de ..." but the message reader underlines only "ller@xyz.de". Clicking on that address opens the message writer with the truncated recipient. Reproducible: Always Steps to Reproduce: 1. receive an email with ... Jürgen.Müller@xyz.de ... 2. "Jürgen.Mü" ist not underlined, only "ller@xyz.de" 3. click address to write a mail - the receipient's name gets truncated too. Actual Results: Email-addresses with raw (though it says in the header the message is mime 1.0 encoded) umlaut(s) get truncated Expected Results: complete adddress "Jürgen.Müller@xyz.de" should be underlined maybe simply the sender is in error and by now umlaute in addresses are not yet supported at all

Jens can you confirm this ?

WFM Mozilla/5.0 (Windows NT 6.1; rv:2.0b5pre) Gecko/20100820 Shredder/3.2a1pre ID:20100820034820 but anyway it's a dupe of bug #254519 (or any other)