problem with sending mail from my mail server

[gljubic]

i have the firepower 1120 and in dmz zone my mail server exists. the mailserver works ok, but when i try to sending mail on specific mail address i receive socket error 10053 and 10054 , i found somewhere on internet i must disable esmtp inspection, but i don't know where is this option on my firewall. how i use no esmtp inspect

[gogi99]

i found that the firepower 1120 has default enable enable esmtp inspect. how i enable it?

[gogi99]

i found next link https://community.cisco.com/t5/network-security/disabling-esmtp-inspection-in-firepower/td-p/3675016 but i don't have the FDT. how i configure no esmtp inspect with the FDM?