how to stop disclaimer text from showing on incoming emails

hello  there

i am running iredmail 0.8.7 on centos   on a mysql backend , Apache with ireadmin  and have managed a default disclaimer txt . The unfortunate bit is that it is also getting appended to incoming emails ( from other domains). How to i stop  this ?

Thankyou

==== Required information ====
- iRedMail version (check /etc/iredmail-release):
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