Setup:
- SUSE 9.3
- Upgrade from 9.4.0
- 512 MB on Pentium 4, 1.8Ghz.
Every few days, clients try to Send out email through POP3 connection or webmail, and the following error message is popped up:
"An error occurred sending mail: the mail server sent an incorrect greeting: No resources"
Problem is cleared once the server is restarted.
This server has been running since September without any problem. Problems started a month ago. Only changes to server are SUSE 9.3 online upgrades.