problem solved (searching the mailing list)
in the mail server (ubuntu 6.0.6, exim4) I turned off tcp_window_scaling
in /etc/sysctl.conf
net/ipv4/tcp_window_scaling=0
thanks to all
Francesco
On Mon, Sep 1, 2008 at 2:27 PM, Francesco Pasqualini <frapas@???>wrote:
> hi all,
> I'm running exim 4.60 without problems for months.
> In the last month I have a seriuos problems.
> Message incoming from some domains get totally losted without any error
> sent back to sender.
> Exim is installed with Spamassassin and MailScanner
>
> In the debug I get:
> 14614 SMTP>> 421 mail.XXXXXXXXXXX.it lost input connection^M
> 14614 LOG: smtp_connection MAIN
> 14614 SMTP connection from cp-out4.libero.it [212.52.84.104] lost
> 14614 search_tidyup called
>
> thanks
> --
> Francesco Pasqualini
>
