Which autoresponder can swap, insert, and delete messages in the sequence cleanly?
Is there any autoresponder out there that allows me to:
* Insert a message in the middle of the follow-up sequence
* Change the day a message is sent out
* Delete a message in the middle of the sequence
Without causing any disruptions such as people getting the same email twice, or skipping emails from the sequence?
Aweber can't do it, GetResponse can't do it. Can any autoresponder do this?