We've just migrated over to SFMC, and I'm planning for a campaign that targets around 25k of my customers for this year. However, it's a one-off campaign and I'm not planning to send anything out until 2020, where my send volume might go up to 100k.
Was advised that I should warm up my IP so I can deliver to the 25k audience, but I don't have any plans to send out any other comms until 2020 to keep my IP warm.
I was given 2 options:
Switch over to shared IP for now and switch back to my dedicated IP in 2020 and ramp up to 100k when I have some kind of consistent comms going out each month to 100k to keep my IP warm.
Stick to my dedicated IP and ramp up to 25k for now. Come 2020, ramp up to 100k and fingers crossed I have some kind of consistent comms ready by then to keep it warm.
Are these the only options available to me and which option works better in terms of the amount of effort and for continuity?