poll server smtp session runs out of order?

2007-12-18 Thread David Sparks
Hi, Has anyone noticed the poll server running "out of order" when under high load? I can connect to one of my qp servers and successfully do most of a smtp transaction before the banner even arrives. Session dump: # telnet 1.2.3.4 25 Trying 1.2.3.4... Connected to 1.2.3.4. Escape character is

Re: poll server smtp session runs out of order?

2007-12-18 Thread Juerd Waalboer
David Sparks skribis 2007-12-18 16:36 (-0800): > # telnet 1.2.3.4 25 > Trying 1.2.3.4... > Connected to 1.2.3.4. > Escape character is '^]'. > helo b.c > mail from:<[EMAIL PROTECTED]> > rcpt to:<[EMAIL PROTECTED]> > 250 mx1 Hi [4.3.2.1] [4.3.2.1]; I am so happy to meet you. > 250 <[EMAIL PROTECTED]

Re: poll server smtp session runs out of order?

2007-12-18 Thread David Sparks
Juerd Waalboer wrote: > David Sparks skribis 2007-12-18 16:36 (-0800): >> # telnet 1.2.3.4 25 >> Trying 1.2.3.4... >> Connected to 1.2.3.4. >> Escape character is '^]'. >> helo b.c >> mail from:<[EMAIL PROTECTED]> >> rcpt to:<[EMAIL PROTECTED]> >> 250 mx1 Hi [4.3.2.1] [4.3.2.1]; I am so happy to me

Re: poll server smtp session runs out of order?

2007-12-18 Thread Charlie Brady
On Tue, 18 Dec 2007, David Sparks wrote: I also thought piplining can't start until after these messages go back and forth: banner,ehlo,250 PIPELINING, so this is not the behavior I would expect. Can any experts provide some insight? You should read RFC 2920 and work out what is permitted, w

Re: poll server smtp session runs out of order?

2007-12-18 Thread Ask Bjørn Hansen
On Dec 18, 2007, at 6:10 PM, David Sparks wrote: I also thought piplining can't start until after these messages go back and forth: banner,ehlo,250 PIPELINING, so this is not the behavior I would expect. I haven't read the RFCs for a while, but I suspect what Charlie said is true. The

Re: poll server smtp session runs out of order?

2007-12-18 Thread Charlie Brady
On Tue, 18 Dec 2007, David Sparks wrote: Has anyone noticed the poll server running "out of order" when under high load? I can connect to one of my qp servers and successfully do most of a smtp transaction before the banner even arrives. As I said in my earlier message, you shouldn't (mustn