To post code, enclose it in backticks: `code`
if it’s multi-line, use triple-backticks on separated lines:
```
code
```
(you get nice syntax highlighting with this)
About your question, you’d have to dig into the .tpl files of each field, in order to see how the links are being formed.
You custom fields, which type do they have? I think there is an email field type which should get your fields to use the same tpl’s as the email1 field…