Hello,I have 2 Ironport C370 in centralized management mode.2 MX records in my public DNS :10      frel01.xxx.xx     [IP_Public_frel01]20      frel02.xxx.xx     [IP_Public_frel02]Those 2 records work fine, I checked them with online tools (mxtoolbox....

Hello,I'm studying CCDP Arch module. For the followings topologies, they explain that : A limitation of those solutions is that it is optimal for networks where each access layer VLAN can be constrained to a single access switch.Stretching VLANs acro...