UNEXPECTED_DATA_AFTER_ADDRESS & usernames?

[Mitchell, Geordie]

> Hi all.
> 
> I've recently set up a copy of Horde/IMP (1.2.5 and 2.2.5 respectively).
> I've had a few problems along the way, mostly due to my own
> simple-mindedness :(
> 
> It is now all up and running, with the exception of the fact that a couple
> of users get the messages: MISSING_MAILBOX_TERMINATOR@.SYNTAX-ERROR and
> UNEXPECTED_DATA_AFTER_ADDRESS@.SYNTAX-ERROR when displaying the contents
> of the "To" field. Secondly, I cannot send mail to these users from other
> IMP accounts. In both cases, the user name is something like: 
> 
> a123456
> 
> Other user names all work without a hitch. When I try to use IMP to mail
> to these accounts, IMP tries to mail to: a@host.domain, rather than
> a123456@host.domain. MS Outlook and pine clients can mail to them without
> difficulty. When displaying messages these clients receive, the "To:"
> field is something like:
> "'a123456@host.domain'" <a@UNKNOWN>,
> MISSING_MAILBOX_TERMINATOR@.SYNTAX-ERROR.,
> UNEXPECTED_DATA_AFTER_ADDRESS@.SYNTAX-ERROR.
> 
> I know that the error messages originate from within PHP/imap, so I don't
> expect that anyone here will necessarily know what I can do about this,
> but I was curious as to whether anyone else has experienced this problem,
> or, alternatively, if someone is running accounts with similar user names
> and not having any difficulties.
> 
> Finally, if there is anyone out there who wants to help me solve this
> problem, I will be happy to give more information about the system I am
> running.
> 
> Thanks,
> 
> Geordie Mitchell
> Research Technologist
> TRL, Victoria, Australia.
> 
> "Even the faithful are not always chosen. This is called sacrifice."
> - The Codex.