Critical error: MID 25342101 antivirus server error from ironport c350. please help me resolve this issue

[sobhadevelopersltd]

The Critical message is:

MID 25342101 antivirus server error

Version: 6.1.0-301

[Enrico Werner]

Hi Sobha Dev.,

the issue is related to the Sophos AV engine. Particular messages can cause an internal Sophos error. The issue has been fixed in newer versions of Sophos. Since you are running on EoL version 6.1 you should upgrade to a supported version which will include an updated Sophos version including the fix.  The latest AsyncOS version is 7.6.1 which has Sophos 4_84.

Regards,

Enrico