I am trying to nest an AMPscript function - Replace(). This should take a value and replace it based on what you designate in the function. However, I have two values I need to replace. The "@" symbol in an email address should be replaced by %2 and the "." symbol in the email should be replaced by %4. This is for use in a URL string where the email address is appendeded to be passed and consumed. Currently I have this:

Set @email = [Email Address]


But it's only replacing the @ and not the ..

Any ideas?

Here is the AMPscript variable block:

/* 101 */ Var @memberfirstname, @memberlastname, @refereefirstname, @refereelastname, @promocode, @rewardpreference, @amountpaid, @email
Set @memberfirstname = member_first_name
Set @memberlastname = member_last_name
Set @refereefirstname= referee_first_name
Set @refereelastname = referee_last_name
Set @promocode = promo_code
Set @rewardpreference = reward_preference
Set @amountpaid = amount_paid
Set @email = [Email Address]

/* 101 */

Due to client confidentiality I cannot post the entire URL string. Here is what it looks like without the actual URL:

<a href="https://url.example.com?c=promocode=%%=v(@promocode)=%%&email=%%=Replace(Replace(@email,"@","%40"),".","%2E"=%%"><img border="0" src="http://image.s4.exct.net/lib/fe9015737461027473/m/1/btn-referee-reminder-apply.gif" width="115" height="32" alt="" longdesc=""></a>
  • Could you post your entire code block? Reason: if the SET is happening in an AMPscript block, like %%[ ]%%, there will be no need to have %%= =%% later on in the same block. Also, it looks like your %4 and %2 are the opposite in your code compared to your question.
    – Timothy
    Apr 9, 2014 at 17:53
  • I just tried this exact code, and it worked perfectly. Am I missing the issue? Apr 9, 2014 at 18:07
  • It seems that due to the "." being replaced by "%2E", the system is returning the ASCII character "." as opposed to the string "%2E". Apr 9, 2014 at 18:29
  • This section is missing a closing parenthesis - %%=Replace(Replace(@email,"@","%40"),".","%2E"=%% Apr 9, 2014 at 18:33
  • 3
    This question appears to be off-topic because it is about URL encoding and there is actually no issue with the functions as written. Apr 9, 2014 at 20:11

1 Answer 1


Your issue lies with the function itself -

Replace this:


With this:


I just dropped this in my account and tested - the resulting link was:

  • The same string in my account ( parenthesis corrected - that was a typo) still yields the following when I click the link: ?c=promocode=X1X1&email=ashley.bisesti%40kobie.com where my email is ashley.bisesti@kobie.com. Apr 9, 2014 at 18:50
  • It has something to do with the use of "%2E", because when I replace that with "dot" instead, it works. Is is just using the ASCII character and printing it to the URL? Apr 9, 2014 at 18:52
  • What browser are you using? I'm trying it on chrome, and it's showing up as %2E. Also unsure why the . reverts and not the @. Apr 9, 2014 at 18:54
  • Just tried again on chrome - https://url.example.com/?c=promocode=123&email=test%2Ename%40test%2Ecom. I think it's a browser issue. Apr 9, 2014 at 18:56
  • By issue I just mean, the browser is interpreting the string automatically. Apr 9, 2014 at 18:56

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