One of the sites I work with is job board and sends out huge numbers of emails, ranging from job alerts every day, to registration confirmations, applications, etc etc
We're moving all the servers to a new host though - and the whole mail system is going to have to come with us!
Is this going to be a problem for the "sender reputation" we have built up? Does anyone know if we're going to end up getting spammed out - I know about SPF records, and we'll change those, but will delivery rates take a dive?!