disturbedone
Vendor
We have 2x CAS and 2x MBX servers on SP2. We have a finance application that emails people when they have had a payment made to them. The application asks for credentials when sending. Several months ago this was not working and I needed to create a ThrottlingPolicy and increasing the MessageRateLimit to 500 and this resolved the issue.
But the finance software had an upgrade and now the fault has returned. I increased the MessageRateLimit to 1000 just to see if that had any effect which it didn't. The application pops up an error saying it was unable to relay which points towards Exchange but the fault is intermittent - sometimes emails go through (not to all, but some), sometimes no emails go through, sometimes emails go to internal recipients but not external, and sometimes emails go to both internal and external. Or at least that's what the end user tells me.
The supplier of the software is not overly helpful. They have a small application that can be used to test email sending but I can send 250+ emails with this and it works perfectly so I don't think it works the same as the main application and is therefore misleading.
The 'unable to relay' error would make sense if it was attempting unauthenticated and Exchange had not been configured to allow that but the application requires email credentials to send with.
Given that the emails aren't successful logs wouldn't show much as they didn't get sent. Or are there logs that might show an attempt and the failure?
Any ideas?
But the finance software had an upgrade and now the fault has returned. I increased the MessageRateLimit to 1000 just to see if that had any effect which it didn't. The application pops up an error saying it was unable to relay which points towards Exchange but the fault is intermittent - sometimes emails go through (not to all, but some), sometimes no emails go through, sometimes emails go to internal recipients but not external, and sometimes emails go to both internal and external. Or at least that's what the end user tells me.
The supplier of the software is not overly helpful. They have a small application that can be used to test email sending but I can send 250+ emails with this and it works perfectly so I don't think it works the same as the main application and is therefore misleading.
The 'unable to relay' error would make sense if it was attempting unauthenticated and Exchange had not been configured to allow that but the application requires email credentials to send with.
Given that the emails aren't successful logs wouldn't show much as they didn't get sent. Or are there logs that might show an attempt and the failure?
Any ideas?
