The problem is complex and it makes me scratch my head. I am testing a campaign, using an HTML page with a Paypal donation button. It is not a form but an image with the following HREF, which works in the original web page and also the HTML version of the campaign:
The text version of the campaign cannot show the button, of course, so I am copying that HREF into the message - but the PHPlist editor changes that line into the following, which Paypal cannot digest:
It does this only with the variable currency_code, not with the other variables contained in the URL.
The only way I could fix this was to go directly to the MySQL database and change the text in the message record (I am talking about a self-hosted version of PHPlist, version 3.3.1) - but after doing that I must completely avoid the editor window, or it will produce the error again.
Is there a setting anywhere that I have to change to avoid this?
Thank you, H.Beer