problem initializing server

Hi all,

I know it seems to be a known problem but I wasn't able to see the 
solution even in exmh old mails and also on google ...

I'm on ubuntu with exmh 2.7.0 and I remove procmail to use exim4.
I can send mails with mutt or 'mail' but I can't send mails with exmh .

Here is my error :
Address or Header Error-1
post: problem initializing server; [BHST] premature end-of-file on pipe
send: message not delivered to anyone


I've tried to change in mts.conf  :
servers: localhost
I replace localhost with my smtp server "smtp.srvc.cvf":
servers: smtp.srvc.cvf

But it doesn't work ...

Any help would be appreciated.

Thanks in advance.


Pierrick