I am trying to set up my RiseUp e-mail account with K-9 Mail client and I’m having an issue. I know RU has dropped support SSL certificates because of security reasons (“The secure connection may be of type TLS or STARTTLS. For security reasons, we no longer support SSL.”), and the error that I’m receiving is because of an unrecognized SSL certificate, should I worry or should I not?
This is the error:
The server presented an invalid SSL certificate. Sometimes, this is because of a server misconfiguration. Sometimes it is because someone is trying to attack you or your mail server, If you’re not sure what’s up, click Reject and contact the folks who manage your mail server.
(java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.)acd25b5fdb Certificate chain[0[: Subject: CN=.riseup.net, OU=PositiveSSL Wildcard, OU=Domain Control Validated Subject has 2 alternative names Subject(alt):.riseup.net,… Issuer: CN=Sextigo RSA Domain Validation Secure Server CA, 0=Sectigo Limited, L=Salford, ST=Greater MAnchester, c=GB Fingerprint (SHA-1): af121b43c05056f1103461eb50d7ba45193a3f97 Certificate chain: Subject: CN=Sectigo RSA Domain Validation Secure Server CA, 0=Sectigo Limited, L=Salford, ST=Greater MAnchester, C=GB Issuer: CN=USERTrust RSA cCertification Authority, 0=The USERTRUST Network, L=Jersey City, ST=New Jersey, Cb=US Fingerprint (SHA-1): eea3a14b
Reject Key/Accept Key