ORA-24250 : No Supported Authentication Scheme Found when Sending Mail Using APEX_MAIL.SEND with MS Exchange Server
Last updated on MARCH 01, 2016
Applies to:Oracle Application Express (formerly HTML DB) - Version 4.0.1 and later
Information in this document applies to any platform.
1. Cannot send mail from APEX using MS Exchange Server. The emails are never received and messages show up in the APEX instance mail queue with error ORA-24250: No supported authentication scheme found
2. When using the default sendmail smtp server (localhost) APEX sends emails successfully.
Configured mail to work with localhost smtp server and it works successfully.
Changed mail server to MS Exchange Server and sending mail fails with ORA-24250: No supported authentication scheme found.
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