You have chosen to sponsor your bid up to a maximum amount of .
Advice and implementation:
Integrate sign up process and access to website dependent on mailchimp double opt-in, then migrate user email address to sendy for email campaigns.
Or implement access and double opt-in on sendy entirely.
Experience of both is a must. Project is straight forward and so should take no more than a day - portal and access details will be provided for the winning bidder.