Why are new email addresses not importing to my list?

[MarkS1]

I upload contacts from file (excel) and add them to a list. The past two months, no new email addresses have been added under the activity after uploading the file. Has this happened to anyone else?

[Caitlin_M]

Hi @MarkS1. Have you only uploaded the file once? Only import/export contact activity shows in this area. If you have a sign-up form that contacts can use to opt-in, these addresses will not show under Activity.