Mails are rejected with error INVALID CUSTOMER

[Kristo Kristatos]

Mailpiler corporate trial seems to be running as expected, but mails being sent from our mailcleaner gateway are rejected by the piler server with the error: INVALID CUSTOMER.

[Kristo Kristatos]

Aug 28 21:30:48 archiv piler-smtp[1424]: processing command fd=6: *EHLO xxxxxxxxxxxxxx.de#015#012*
Aug 28 21:30:48 archiv piler-smtp[1424]: sent fd=6: 250-xxxx.xxxxxxxxxx.de#015#012250-PIPELINING#015#012250-SIZE#015#012250 8BITMIME
Aug 28 21:30:48 archiv piler-smtp[1424]: processing command fd=6: *MAIL FROM:<[e-mail]> SIZE=4708#015#012*
Aug 28 21:30:48 archiv piler-smtp[1424]: sent fd=6: 250 Ok
Aug 28 21:30:48 archiv piler-smtp[1424]: processing command fd=6: *RCPT TO:<[e-mail]>#015#012*
Aug 28 21:30:48 archiv piler-smtp[1424]: sent fd=6: 451 invalid customer
Aug 28 21:30:48 archiv piler-smtp[1424]: processing command fd=6: *DATA#015#012*
Aug 28 21:30:48 archiv piler-smtp[1424]: sent fd=6: 503 Bad command sequence
Aug 28 21:30:48 archiv piler-smtp[1424]: processing command fd=6: *QUIT#015#012*
Aug 28 21:30:48 archiv piler-smtp[1424]: sent fd=6: 221 xxxxx.xxxxxxxxx.de Goodbye
Aug 28 21:30:48 archiv piler-smtp[1424]: disconnected from aa.bb.dd.ee on fd=6, reason=finished (0 active connections)

This is an excerpt from the error log.
System was installed with a trial license which is shown in the log as valid.

[Janos SUTO]

The uuid-like local part works only if you use an smtp gateway which translates the uuid-like local part to the actual customer name.

If you don’t use such gateway, then the customer name must be what you can see in the customers listing. It’s also the same as the database name for the customer.

[Janos SUTO]

I assume it's closed