Hi, sorry if i answer only now but i was away for work.
The verbose Log is as follows:
Jun 22, 2018 9:31 AM: Backend event: Get - Completed: duplicati-bab6d1dfe389544dc9097edaa65526fb6.dblock.zip (965 bytes)
Jun 22, 2018 9:31 AM: Backend event: Get - Started: duplicati-bab6d1dfe389544dc9097edaa65526fb6.dblock.zip (965 bytes)
Jun 22, 2018 9:31 AM: Backend event: Get - Completed: duplicati-i2fd886caba014b909af072b61d386820.dindex.zip (652 bytes)
Jun 22, 2018 9:31 AM: Backend event: Get - Started: duplicati-i2fd886caba014b909af072b61d386820.dindex.zip (652 bytes)
Jun 22, 2018 9:31 AM: Backend event: Get - Completed: duplicati-20180622T073108Z.dlist.zip (1,69 KB)
Jun 22, 2018 9:31 AM: Backend event: Get - Started: duplicati-20180622T073108Z.dlist.zip (1,69 KB)
By configuring the email section as indicated in this post by Marc_Aronson:
the problem does not occur, the backup ends by giving the warning and Duplicati continues to work properly.
–snapshot-policy=auto
–send-mail-url=smtp://smtp.gmail.com:587/?starttls=when-available
–send-mail-any-operation=true
–send-mail-subject=Duplicati %PARSEDRESULT%, %OPERATIONNAME% report for %backup-name%
--send-mail-to=MYACCOUNT@gmail.com
--send-mail-username=MYACCOUNT@gmail.com
–send-mail-password=MYPASSWORD
–send-mail-from=BK PC MYACCOUNT@gmail.com
It would be useful to be able to add this configuration in some way to the email configuration guidelines.
PS: Disabling the network interface the problem does not occur, it only happens by unplugging the network cable. I found the problem because there was a fault on the ADSL line and i stayed almost a week without Internet connection.