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Dec 4, 2017, 3:08 AM
4 Posts

SMTP Traffic Usage

  • Category: Mail
  • Platform: Windows
  • Release: 9.0.1
  • Role: Administrator
  • Tags:
  • Replies: 2

Hi All, my client has asked me if I can advise on how much traffic is being sent/received on the SMTP protocol, however I dont know if this is easibly obtainable information and wondering if anyone is aware on how to get this information (if possible)?

I dont have a lot of IBM Domino mail experience but I have read online and I saw from an IBM article that the Notes client can interact with the Domino server using its own Notes protocols, which I assume for the majority of traffic i.e. connections to Domino, internal Notes client to Notes client email must be the case.

I know that the SMTP protocol has been configured on all of the Domino mail servers (4 servers) in the clients environment.

The client has a DNS A record for SMTP, which a variety of applications and other services relay through. They do not have a load balancer and dont use DNS round robin, so the traffic is pointing to one server. If that server needs to have maintenance, then they manually update the A record to point to another server.


Is there any way possible I can check to see the volume of SMTP traffic on all servers? Not sure if I can do this centrally from the Admin console, or if I'd need to check each server individually?

I dont have any experience with lotus script, or many of the options within Domino admin so apologies if I ask some basic follow up questions.

Thanks in advance.

Jan 10, 2018, 10:52 AM
196 Posts
The stats are obtainable from Domino console logs

I recently collected stats on SMTP traffic. I parsed the console logs (I had a little over six months worth of console logs to parse) for "SMTP Server: Message ", outputting the results to a text file. I then opened the file in Excel, and copied the date column to another worksheet. I then used Excel's subtotal function to find what the peak day for traffic was, and compare this to the average for the whole period. Since one Domino server does most of the transfers to the outbound Internet gateways, this was not as time consuming as it may sound. 

It would be nice if the max and average amount of traffic could be displayed on an ongoing basis. Enabling billing does not, if I recall correctly, distinguish between NRPC (internal) and SMTP mail traffic. 



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