[Mailman-Users] limitation in name of the account between the mail client and mailman?

[Esteban Torres]

RHEL 5.3
postfix-2.3.3
mailman-2.1.9


I have a problem with the mail client (thunderbird and Outlook Express). When sending an email to the list from the mail client and the client has set the name of the big personal information does not commands. I get this error:

July 29 11:53:10 2010 (29 383) All recipients Refused: ('=? Iso-8859-1? Q? Administrative = f3n_of_system_and_configurati? =': (550, '5 .1.1 <=? Iso-8859-1? q? administrative = f3n_of_system_and_configurati? =>: Recipient address rejected: User unknown in relay recipient table ')), msgid: <mailman.70.1280397189.29381.support_tec at test.es>
July 29 11:53:10 2010 (29 383) delivery to =? Iso-8859-1? Q? Administrative = f3n_of_system_and_configurati? = Failed with code 550: 5.1.1 <=? Iso-8859-1? Q? Administrative = f3n_of_system_and_configurati ? =>: Recipient address rejected: User unknown in relay recipient table


If I send from squirrelmail works fine.

If the name of the account of the personal information I set it up shorter length also works perfect.

Is there any length limitation in name of the account between the mail client and mailman?