[Info-vax] SMTP chunk sizes

[David Froble]

Stephen Hoffman wrote:
> On 2015-03-23 23:55:25 +0000, Rich Jordan said:
> 
>>      Using the windows server as smarthost is fine for small mail so 
>> far.  However I just sent the same email message that would take 15-20 
>> minutes to get to GMAIL, and would die going to MS in 10 minutes, and 
>> it took over 75 minutes to send from the Alpha to the PC (on the same 
>> LAN...).  That was the 10.8MB body message (all text).  The same text 
>> file attached (and so uuencoded) is at 78 minutes now.
>>
>>      Once it got to the windows server it appeared to take about 2 
>> minutes to get to me, so thats good, but we'll have to see if anything 
>> can be done about the intersystem pokiness.  I'll try and get a packet 
>> trace tomorrow.
> 
> One left-field check, given the really slow network performance...   
> Make sure it's not something simple, like a mis-negotiated network port, 
> or a bad switch port or flaky NIC.  Reset the network connection from 
> the Alpha to the switch to 100 MbE full-dup or whatever the appropriate 
> setting for the hardware, and both at the switch and at the SRM 
> console.  Be skeptical around the displays from any managed switches, 
> and reset the port after configuring it.  (I'd expect this 
> misconfiguration to show up in the packet traces, though...)
> 
> 

Yeah, having been bit once, when I see such I immediately think of a 
network port mis-match.  10 MB over a properly set up network should not 
be a problem.