404 Not Found Error in Email Links

[Anonymous]

We recently migrated from an old Marketo instance to a new one. All of the programs and assets were cloned over to the new instance, but the links in the emails do not work. They will work properly in Preview mode, but when I send myself a test, I get the following error:

Does anyone have any idea why this is happening?

I have

[SanfordWhiteman · Accepted solution]

Have you been sure to set your branding domain CNAME to point to the new instance?

[Anonymous]

Sanford,

We set the CNAME to point to the new instance and I am still having issues.. Now the images show up, but they direct to our homepage instead of the page they are supposed to go to. Do you know the issue could be here?

[SanfordWhiteman]

Does the old Munchkin ID appear in the image path? (i.e. pages.example.com/rs/aaa-111-333/image.jpg)

[Anonymous]

Yes. It's the links that are the issue now, not the images.

[Anonymous]

Sorry - no, the old Munchkin ID is not there. It is the new one.

[SanfordWhiteman]

But do the images actually exist at the new URL?

[Anonymous]

Yes. I uploaded them to the design studio then added them to the email with the new URL.

This is what I discovered:

• In preview mode: the correct images show up and link to the correct page
• In a test: the correct images show up, but direct to our homepage.
• When I hover over the link in the test email, I see (http://go.homepage.com./querystring of numbers).  We used info. and go. as our subdomains. These were also the subdomains we used in our old instance, which is still active.

[SanfordWhiteman]

OK, double-check that your CNAMEs refer to the right canonical (primary) hostname.

• The branding (tracking) domain, go.example.com, points to mkto-*.com
• The LP domain, info.example.com, points to *.mktoweb.com, your so-called "account string"

<img src=> attributes are loaded via the LP domain and should stay that way in rendered emails.

While <link href=> may be originally under the LP domain (or at any third-party domain) when entered in the Email Editor, they'll be rewritten to the branding domain in an actual email.

[JD_Nelson]

did you migrate your redirect list too? Is this happening for ALL links to previous content, or only some?

[Anonymous]

What is/where do I find the redirect list?

And this is to ALL links - including local Marketo landing pages and external pages.

[JD_Nelson]

if it's "all links" then it's probably not the redirect list (which is found in Admin under Landing Pages, then the "Rules" tab).