SSL_Accept Error

Ted Curvin

• September 11, 2020 07:33

Hey everyone, Getting an SMTP error with a MFP copier which will not send scanned documents via e-mail. We have 5 of these machines, and all do the same thing. Here is the error in the exim_mainlog: SSL verify error: certificate name mismatch: DN="/OU=Domain Control Validated/OU=COMODO SSL Wildcard TLS error on connection from [xxx.xxx.xxx.xxx]:45879 (SSL_accept): error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol I have updated the MFP to the latest firmware, and that didn't help. I have tried a few different 'options for openssl' and 'ssl/tls cipher suite list' changes in the exim configuration manager with no luck. Any help would be great! Thanks

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  andrew.n

  • September 11, 2020 16:04

  Your printer is still using obsolete SSL protocols hence you are seeing the issue. I suggest to get in touch with their support to see how you can enable TLS support on the printer itself rather than allowing these vulnerably protocols on the server itself.

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  Ted Curvin

  • September 11, 2020 18:23

  Unfortunately they are DELL printers, and they are no longer supported as they no longer make printers. I tried to reach out to Lexmark as they actually made them for DELL, but they want no part of it. I did try to update the firmware to the latest Lexmark firmware which actually didn't give me any errors, but still uses outdated TLS protocols.

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  andrew.n

  • September 11, 2020 21:51

  Here are the options from where you can adjust the protocols:

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  cPanelLauren

  • September 11, 2020 22:44

  I would second what @andrew.n notes here. Using SSLv2 and v3 does pose a security risk.

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  Ted Curvin

  • September 14, 2020 14:15

  I do realize it is a risk, but I have 4 of these scanners that currently aren't working and people depend on them. I tried the above articles' solutions but still gives an error: dropped: too many syntax or protocol errors

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