We are currently experiencing a very weird problem and I wondered if one of you ever had this before.
For a customer we implemented an asp.net application that approves NAV-documents through webservices (with the existing NAV-logic → approval management, smpt, …).
Users can approve, delegate and reject documents from this application, so sometimes it is needed that an e-mail is sent to another user.
Everything is working fine most of the time, but for one reason or another the application starts blocking on the sending of the e-mail (e-mails were also sent with the application shortly before). The following message is returned from NAV:
The SMTP mail system returned the following error: (0x80040605): Unknown Error
If I open the RTC-client and want to perform a manual approval request (including sending of e-mail) I get the same message. In the classic client everything is working fine.
The error is solved from the moment I restart the service tier (Server + webservice).
Anybody any idea what is causing this or how this can be solved ?
I’m getting a bit desperate :-).
This may sound as a silly question, but did you check if the virus scanner is blocking the sending of e-mails by external applicatiions? I ran into this problem myself when using the SMTP cu 400.
The customer in our case was running the enterprise version McAfee and that didn’t give a clear warning except a message in the log.
As far as I can see no virus scanner is installed on the server but I will check with the IT-guys.
Did you have this problem on RTC/Webservices only ? Or also in the classic client ?
If I try to send an approval request from the classic client on that same server…everything is working fine.