On Sun, 07 Dec 2025 14:10:11 -0500 Katie via linux <linux [ at ] linux-ottawa [ dot ] org> wrote: > I have communicated with my web host, who says that the problem lies > with IP address: 51.161.115.83 That is: mailpro2.whc.ca. It seems that that's your ISP's email server, and it is the one on the blocklist. So WHC are the ones who need to fix it. Regards, Dianne. To unsubscribe send a blank message to linux+unsubscribe [ at ] linux-ottawa [ dot ] org To get help send a blank message to linux+help [ at ] linux-ottawa [ dot ] org To visit the archives: https://lists.linux-ottawa.org