Sorry if if already exist something related to my question in the forum. I don't know exactly how to search about this.
After submitting these forms in the html folder, the resulting pages show a "status message" on the top. Actually everything works ok.
For example when I submit the "subscribe_single_fixed.php" form I get:
"firstname.lastname@example.org: 250 Ok".
When I click the confirmation link in the e-mail message, the page shows:
"email@example.com: 250 Ok firstname.lastname@example.org: 250 Ok"
How can I disable these messages ?