[exim] exim and cyrus disagree about mail-from-syntax

Hi all,

I realised that lately messages arrive which cause unnessessary bounces
because they are accepted by exim and rejected by cyrus.

I didn't have a look at the RFCs yet, so I'm not sure whom to blame...
In my data-acl I do "require verify = sender".

The log says:
R=imap_delivery_director T=imap_transport: LMTP error after MAIL
FROM:<andr\351@???>: 501 5.5.4 Syntax error in parameters


--
CU,
Patrick.