- Plesk for Windows
- MailEnable with enabled Smart Host is used: MailEnable > Servers > localhost > Services and Connections > SMTP > Properties > Smart Host
- Unable to send an email, below bounce is returned:
CONFIG_TEXT: Your message addressed to the target domain () could not be delivered because the mail server responsible for this domain returned a permanent error.
The server returned:
550 5.7.1 [IIA] Connection refused
The issue on Smart Host side.
Check the issue on Smart Host side.
login to the server via RDP
Disable Smart Host: MailEnable > Servers > localhost > Services and Connections > SMTP > Properties > Smart Host:
Restart SMTP service via Plesk Services Monitor: