Hello,
        
        Since a few weeks, we've a problem when we send e-mail to MTA of
        Yahoo (yahoo.com or yahoo.fr)
        The log in our postfix server are:
        
        Jan 25 09:27:37 emailfrontal1 postfix/error[12384]: 19128F857F:
        to=<patrickjallut@yahoo.fr>, relay=none, delay=164344,
        delays=164344/0/0/0.03, dsn=4.4.2, status=deferred (delivery
        temporarily suspended: lost connection with
        mx-eu.mail.am0.yahoodns.net[77.238.184.241] while sending end of
        data -- message may be sent more than once)
        Jan 25 09:28:00 emailfrontal1 postfix/smtp[12670]: DAC59F88F9:
        to=<bzwahlenmattei@yahoo.com>,
        relay=mta5.am0.yahoodns.net[66.94.237.139]:25, delay=260738,
        delays=260715/0.01/12/11, dsn=4.4.2, status=deferred (lost
        connection with mta5.am0.yahoodns.net[66.94.237.139] while
        sending end of data -- message may be sent more than once)
        
        When we try a telnet connection it works but the sessions is
        closed after 5 sec:
        
        telnet mx-eu.mail.am0.yahoodns.net 25
        Trying 77.238.184.241...
        Connected to mx-eu.mail.am0.yahoodns.net (77.238.184.241).
        Escape character is '^]'.
        220 *********************************************************
        
        We don't see any packet loss between yahoo and us.
        
        Is anyone have seen this problem?
        Can someone from Yahoo contact me offlist?
        
        Thanks for your help.
        Regards
        Jonathan
    -- 
Jonathan Jeanneret
IP Systems Engineer
Service Industriels Lausanne
Citycable - www.citycable.ch
jonathan.jeanneret@citycable.ch
Phone: +41 21 315 96 40
Mobile: +41 79 506 28 57