420i/520i Operation Guide
Page 336
... is rejected by the domain, you cannot send the e-mail. Failed to send i-FAX. Failed to send via SMB. Failed to send the e-mail. Troubleshooting Error Code 1104 1105 1106 1131 1132 2101 Error Message Corrective Actions Reference Page Failed to send the e-mail. Select [On] of the POP3 user -
... is rejected by the domain, you cannot send the e-mail. Failed to send i-FAX. Failed to send via SMB. Failed to send the e-mail. Troubleshooting Error Code 1104 1105 1106 1131 1132 2101 Error Message Corrective Actions Reference Page Failed to send the e-mail. Select [On] of the POP3 user -