Yes i have given the credentials as you have described. I did check the UM connection alias and it is configured for SSL port and not for default port 9000.
I donot see any issue with messaging alias.
There are 3 JNDI aliases and all are configured with correct credentials and tested with Test button right next to them and test is successful.
I get the below error mails every second and nirvana.log is getting piled up.
SECURITY: Mandatory credentials not supplied - firstname.lastname@example.org on nsp://10.230.9.133:49517
here webm is the user to login to UM linux box.
The users.txt user is Administrator and our UM is configured for both LDAP and users.txt.
I am able to login to EM with both LDAP user and users.txt user.
Messaging alias is up with SSL port.
JNDI aliases are set with default port 9000 with Administrator user (users.txt user)
It might not be from JNDI. but what could be the other connection trying to login to UM from IS host?