Importing old unsubscribe lists

[Anonymous]

Can I import a unsubscribe list into the lead database that will allow me then to never email these people??

[Josh_Hill13]

You can do this faster by creating a CSV:

Email Address | Unsubscribed | Unsubscribed Reason

then fill in email, 1, and reason name

There's no reason to do this if your Marketo never had these people anyway.

[Lucas_Metherall]

Hi Josh, 

When importing data into MKTO, and you have an unsubscribe column, will MKTO understand True/False, or Y/N as data in that field? Or is it only 1/Blank?

[Anonymous]

This worked! Thanks so much for the suggestion.

[Anonymous]

Yes, You can import them by email address only if you like to a designated list, then select all members, do a data value change and change unsubscribe to true. I would typically do this again and change the unsubscribe reason as well and note where the list came from and why the change.