Hey @Mariano Rocchetti - apologies... I meant to respond this yesterday and got sidetracked!! I use the same email accounts for both US and the UK so dont see that as an issue to be fair and 1K prospects isn't a huge data set to be honest. Would love to know more about your current setup - where you purchased your domains, whats the TLD, who you use for your mail accounts, how many you have, which sequencer you use for your campaigns, what your copy looks like... would love you to post that in here so we can discuss... although feel free to DM me if its something you'd like to keep private - and i'll not try to sell you anything dont worry, i'm happy to help! 👍