Mailscanner unlinking error

[Rudolf Kliemstein, village-net]

Hello,

I have the following problem after upgrading to 4.55

 Unlinking
/home/virtual/FILESYSTEMTEMPLATE/services/sendmail/mqueue/qfk92F6oIa008264
failed: No such file or directory 

This appears with some emails but not with all.
I have greylisting and sendmail rlb checks running. Could this be related
with those services?

Thx

Best Regards

Rudi