I need to send over port 25, but the ISP has blocked it. I need an alternative since my printer has no option for TLS / SSL and the provider requires port 587 with TLS or SSL I cannot use this and port 25 is blocked also.
I have the latest firmware, but I guess the printer is just to old. I can give an alternative port and some SMTP authentication options, but there is nothing like SSL or TLS. My provider requires port 587 and TLS or SSL.
Perhaps the are providers who offer an email address that still uses port 25?
Anyone any idea on how to solve this with the hardware and firmware limitations that I have.