Hi Smartermail Community

I have an issue with outgoing email.

I just set configuration in Smartermail > Domains > Configuration > Inbound Message Delivery > External (Use MX Record). I set this to prevent smartermail perform "local delivery". So everything will be sent external based on MX record

After that I trying to sent email from user@domain.com to user1@domain.com and i got this error:

[2022.04.14] 11:26:41.635 [29001795] Added to RemoteDeliveryQueue (1 queued; 0/50 processing)
[2022.04.14] 11:26:41.635 [29001795] [RemoteDeliveryQueue] Begin Processing.
[2022.04.14] 11:26:41.635 [29001795] Sending remote mail from user@domain.com
[2022.04.14] 11:26:41.635 [29001795] Outbound SMTP is not allowed. Reason: Password expired.
[2022.04.14] 11:26:41.635 [29001795] Delivery for user@domain.com to user1@domain.com has bounced. Reason: Remote host said: 550 Outbound SMTP is not allowed
[2022.04.14] 11:26:41.635 [29001795] DSN email written to 2429001796 with status failed to user1@domain.com
[2022.04.14] 11:26:41.635 [29001795] Delivery for user@domain.com  to user1@domain.com  has completed (Bounced)
[2022.04.14] 11:26:41.635 [29001795] Removed from RemoteDeliveryQueue (0 queued or processing)

I tried googling it but no luck.

Maybe anybody knows what's the problem

Many Thanks