An incorrect link in an email has happened to just about every marketer. Thankfully, you can correct those broken URLs after sending them.
Before you start
Things you need to know:
You cannot change default links, such as Unsubscribe, Double opt-in, and View in the browser.
You cannot change the link text or images, only the destination URL of the link.
You cannot change links created using the Links to a page tool.
Change the linked URL in a sent email campaign
Go to Campaigns > Email > Sent and find the campaign.
Select Summary next to the campaign name.
On the summary page, select View/Edit next to Hyperlinks.
From the link editor, select Edit (Pencil icon) next to the link.
Update the URL. When done, Select Save (tick icon) to save.