Konica Minolta SMTP 3003 Error
For e-mail transmission on the bizhub C368/C308/C258 family, code 3003 means the configured SMTP server address is invalid.
What this code means
This error belongs to the e-mail/SMTP transmission table. It points at the configured mail-server address rather than a printer mechanism fault. A bare 3003 from another context should not automatically be treated as this SMTP error.
Affected models / family scope
- bizhub C368
- bizhub C308
- bizhub C258
Common formatting
- SMTP 3003
- SMTP3003
- E-mail 3003
- Email 3003
- 3003
What to try
Confirm the failed operation was Scan to E-mail.
Do not apply this meaning to an unrelated service or hardware code.
Review the SMTP server address.
Check the configured host name or IP for spelling mistakes, pasted spaces, an old server name, or an address that is no longer used.
If a host name is used, verify DNS.
Make sure the bizhub has valid DNS settings and that the mail-server name resolves from the printer network.
Retest after correcting only the address.
Do not change ports, encryption, authentication, or certificates unless another error or the mail administrator's configuration shows those settings are wrong.
When to stop and get help
If the SMTP address is correct and resolvable but 3003 remains, ask the mail or network administrator to verify the printer's configured server address and DNS path. Preserve the exact code and current settings.