User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2b) Gecko/20021016 Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2b) Gecko/20021016 Sending a mail e.g. to "abcde fghijklmnopqrstuv NÖ" <er@aknqmail.aeknoe.or.at> leads to an attempt to deliver the mail to <"er\""@aknqmail.aeknoe.or.at>. Without the quotes we get <"abcdefghijklmnopqrstuvNÃ<er"@aknqmail.aeknoe.or.at>"> In both cases there's this extra double quote just before the "@", leading to "unknown address" or "unknown account" error replies. Reproducible: Always Steps to Reproduce: 1. compose email to an address similar to the one above 2. check the error reply (or your MTA's log file) Actual Results: Send attempt to invalid address (double quote inserted before "@") Expected Results: Correctly separate actual address from info text This only seems to happen when the "To:" line is wrapped. Workaround for the user is making the address shorter (e.g. deleting the "info" part)

accepting

Checked with Mozilla 1.7.13, works.