IIS URL Rewrite Wrong Port in Generated Links for Email

Question

I am using ARR on IIS 8.5 with a URL rewrite pointing to a server farm. The backend web sites run on the same machine, but on different ports, ie 8102 . Some of the backing web site nodes send emails for email confirmation and those mails contain an activation link that has a wrong port in it (host name is correct). The link has the same port which the web site instance has. But that is a problem since the link is then broken. In the code I am using to generate the link:

Url.Action("ConfirmMail", "Account",
                new { userId = user.Id, code = UserManager.GeneratePasswordResetTokenAsync(user.Id)},
                protocol: Request.Url.Scheme);

So the link the users get is https://correct_hostname:8102/Account/ConfirmMail?..... The correct link should be https://correct_hostname/Account/ConfirmMail?..... or https://correct_hostname:443/Account/ConfirmMail?.....

Any ideas how to make it work?

Answer 1

I think you can remove the port like this (non-tested code):

@Url.Action(
    "ConfirmMail", 
    "Account", 
    new { userId = user.Id, code = UserManager.GeneratePasswordResetTokenAsync(user.Id)}, 
    protocol: Request.Url.Scheme, 
    Request.Url.Host
)

More information here