Hi Krista, We used to have the same problem when we used Listserv 16.5 with confirmations unless turned HTTPS to HTTP. The problem disappeared after we upgraded to 17.0 this year. Best, Shinn ________________________________ From: LISTSERV Site Administrators' Forum <[log in to unmask]> on behalf of Krista <[log in to unmask]> Sent: Thursday, December 16, 2021 8:06 AM To: [log in to unmask] <[log in to unmask]> Subject: HTTPS redirect I followed the instructions I found here: https://www.lsoft.com/manuals/lsv-faq/443SecuringtheLISTSERVwebinterfa.html to redirect all traffic from HTTP to HTTPS on my ListServ 16.5 installation. Everything worked except for Confirmation URLs, which threw a 500 error until I turned off the redirect rule. Anyone have ideas on why that's happening? Krista Landon ________________________________ To unsubscribe from the LSTSRV-L list, click the following link: http://peach.ease.lsoft.com/scripts/wa-PEACH.exe?SUBED1=LSTSRV-L&A=1 ############################ To unsubscribe from the LSTSRV-L list: write to: mailto:[log in to unmask] or click the following link: http://peach.ease.lsoft.com/scripts/wa-PEACH.exe?SUBED1=LSTSRV-L&A=1