# Setting up email via web-interface not working SOLVED **URL:** \ **Category:** Support\ **Created:** [September 16, 2017, 12:32pm UTC](https://forum.duplicati.com/t/setting-up-email-via-web-interface-not-working-solved/669 "2017-09-16T12:32:21Z")\ **Posts on this page:** 1\ **Showing post:** 9
**Author:** ![JonMikelV](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/j/439d5e/32.png) [@JonMikelV](https://forum.duplicati.com/u/JonMikelV)\ **Post date:** [September 17, 2017, 2:33am UTC](https://forum.duplicati.com/t/setting-up-email-via-web-interface-not-working-solved/669/9 "2017-09-17T02:33:08Z")
I’m seeing this in the error: > Failed to send email: System.IO.IOException: The authentication or decryption has failed. > → System.IO.IOException: The authentication or decryption has failed. > → Mono.Security.Protocol.Tls.TlsException: Invalid certificate received from server. Combined with you running as a service has me wondering if you’re experiencing some Linux flavor of the TLS error mentioned here. > [@Windows service + minio with ssl error](https://forum.duplicati.com/t/windows-service-minio-with-ssl-error/527/4): > > I figured this out, want to document it for the sake of others. Synopsis: When using Duplicati with a Windows service, have to specify TLS12 at the job level in order to work with Minio. Setting at a global level does not appear to take. It did automagically work when I was using it as a desktop application instead of a Windows service, but I probably won’t have time to reproduce with a new system to determine the difference. Details: I used ssldump on my minio server to capture packets. 1… Oh, and I’m not finding it now (and it may not apply) but there are known issues with mono not including “standard” certificate information by default. If you think that might be the case, let me know and I’ll try looking again. --- _[View the full topic](https://forum.duplicati.com/t/setting-up-email-via-web-interface-not-working-solved/669)._