Yes you are right, may be the message are queued in the sender mailserver,
that will retry in the future....
but the problem remain... every attempt to send mail from some domains get
lost connection problem...
> No message was ever received to be lost, as the sending side never made
> it past the initial connection. Spambots and some really crappy old mail
> servers do this. Any decent mail server will try again.
>
> Generally, not something to worry about.
>
> --
> The Exim Manual
> http://www.exim.org/docs.html
> http://docs.exim.org/current/
>
> --
> ## List details at http://lists.exim.org/mailman/listinfo/exim-users
> ## Exim details at http://www.exim.org/
> ## Please use the Wiki with this list - http://wiki.exim.org/
>
