Cannot send data.

Is the volume per E-mail to be sent exceeding the maximum receiving capacity of the SMTP server?

If the volume of one E-mail message exceeds the maximum capacity of the SMTP server for reception, an error occurs which will prevent transmission.

Was the transmission procedure carried out correctly?

Check the transmission procedure and then resend the data.

Are the network settings and connection correct?

Check the network settings and connection.

For information on how to configure the network settings, refer to Connecting to the Network.

Is the correct E-mail address set for this machine?

Check the E-mail address of the machine and configure it.

For information on how to configure the E-mail address setting, refer to Registering Information of This Machine.

Are cables connected correctly?

Make sure that the cables such as network cables are correctly connected.

Is the address you entered for the destination correct?

Were the address book destination and program destination registered correctly?

If you are using a destination in the Address Book or Program, the address registered may be incorrect.

Print the list of address book destinations to check that the numbers are registered correctly. For the procedure for printing the list of destinations, refer to Printing the Destination Information List.

Scanned data cannot be sent (by SMB transmission) to a specified computer.

Is the folder correctly specified?

A path for a destination folder containing "/ (slash)" is not valid. Use "\" to specify the path for the destination folder.

Have you specified a folder name using more than 13 single-byte characters?

When sending the scanned data to a folder on a PC running macOS, specify a folder name using up to 12 single-byte characters.

When sending scanned data (by SMB transmission) to a specified computer, operations take place slowly.

Is [LLMNR Setting] enabled?

Select [Utility] - [Administrator] - [Network] - [TCP/IP Setting] - [TCP/IP Setting1], and disable [LLMNR Setting].