The size of the email is not big, and I don't think the size of the emails matter. No, no attachments, it's mostly just acknowledgement mails. I have seen emails being blocked at around 3KB, whilst emails around 5KB got sent whilst a 160KB mail got blocked. OK, I have disabled tcp_windows_scaling on the server, we'll see if this keeps on happening.
On Tue, Feb 16, 2010 at 10:20 AM, Daniel V. Reinhardt <crypto...@yahoo.com>wrote: > > > > > > >From: Jafaruddin Lie <jafaruddin....@gmail.com> > >To: Daniel V. Reinhardt <crypto...@yahoo.com> > >Sent: Mon, February 15, 2010 10:50:07 PM > >Subject: Re: Postfix - Timeout While Sending End of Data > > > > > >Currently we have mails going to our internal mail server being queued up. > > > >So, to answer your question, it's ethernet 100Mbps connection. > > > >On Tue, Feb 16, 2010 at 9:36 AM, Daniel V. Reinhardt <crypto...@yahoo.com> > wrote: > > > >>> > >>>>> > >>>>>So here's an update: > >>>>> > >>>>>1. I have turned off fixup smtp and checked that inspect esmtp or > inspect smtp is not running. > >>>>>2. I have also enabled ICMP for both ends from our DMZ mail server and > internal mail server. It is still happening. > >>>>> > >>>>> > >>>>>Plot thickens huh. > >> > >> > >> > >>What is your connection speed, and what are you sending? > >> > >>>>Thanks, > >>>> Daniel Reinhardt > >>>>Website: www.cryptodan.com > >>>>Email: crypto...@yahoo.com > > You didnt answer my question, what is being sent in these e-mails like > attachments, and if so what size are they. > > Can you provide log files and what not? > > Also keep replies on the list. > > Thanks, > > Daniel Reinhardt > Website: www.cryptodan.com > Email: crypto...@yahoo.com > > > > -- Registered Linux user no. 384430
