Hello,
I have one Ironport C370 and when I send a message to an address I have this response
bounced by destination server. Reason: 5.3.0 - Other mail system problem ('542', ['5.7.1 Spiked: templates/60cde3022cf2c937.1.0.419.2522.2820.07090306040200..1/10'])
this recipient correctly receives these emails.
By performing tests still to the same destination but with a different address from our area I saw it functioned.
