Hi, thanks for the fast feedback.
I did some debugging and found that the only allowed protocol is "TLSv1" which is hardcoded in MailConnection.java#getConnectedTLSSocket(). Can you point me to the source code of the geronomo-javamail_1.6_mail package in v1.0.0 ? I would like to test, if adding other protocols would solve the issue. I only found [1], which is an outdated GitHub Repo. [2] does not contain Geronimo Java Mail 1.6 Best, Richard [1] https://github.com/apache/geronimo-javamail [2] https://github.com/apache/geronimo-specs Am Dienstag, den 01.12.2020, 12:16 +0100 schrieb Jean-Louis Monteiro: > Hey Richard, > > Thanks for the detailed email. > I have contributed recently to Geronimo Mail 1.6 but to be honest I > can't > answer out of my head. > > Cesar also worked on it, so he might be able to help. > Other than that, I'm CC'ing Geronimo mailing list. Maybe Romain and > others > can help there. > > Jean-Louis > > -- > Jean-Louis Monteiro > http://twitter.com/jlouismonteiro > > http://www.tomitribe.com > > > > On Tue, Dec 1, 2020 at 10:55 AM Zowalla, Richard < > richard.zowa...@hs-heilbronn.de > > wrote: > > > Hi all, > > > > I have updated our TomEE instances to 8.0.5 as (Geronimo) Java Mail > > 1.6 > > replaced the rather outdated (Geronimo) Java Mail 1.4 in this > > release. > > > > Up to now, we were using > > > > <dependency> > > <groupId>com.sun.mail</groupId> > > <artifactId>jakarta.mail</artifactId> > > <version>1.6.5</version> > > <scope>provided</scope> > > </dependency> > > > > as our mail server is configured to only support TLS 1.2 or TLS > > 1.3. > > These protocols were not supported by Java Mail 1.4. > > > > I recently tried to migrate to the provided Geronimo Java Mail 1.6 > > hoping for better protocol support, but I get > > java.net.SocketException > > due to a javax.net.ssl.SSLHandshakeException with "Received fatal > > alert: protocol_version". > > > > The full stack trace and related debug output can be found here: > > https://gist.github.com/rzo1/64c23a1d9be752eadf36cf3e1c719ffa > > ) > > > > The mail session is configured as follows: > > > > <?xml version="1.0" encoding="utf-8"?> > > <resources> > > <Resource id="tomee/mail/demoSMTP" type="javax.mail.Session"> > > mail.debug=true > > mail.transport.protocol=smtp > > mail.smtp.starttls.enable=true > > mail.smtp.starttls.required=true > > mail.smtp.ssl.enable=false > > mail.smtp.host=mail.mail-server.com > > mail.smtp.port=587 > > mail.smtp.auth=true > > > > mail.smtp.user=d...@mail-server.com > > > > <!-- your password, and not 'mail.smtp.password' --> > > password=fancyPassword > > </Resource> > > </resources> > > > > Question: > > > > - Does anybody have an idea how to get Geronimo Java Mail 1.6 > > talking > > via TLS 1.2 or TLS 1.3 to our mail server? > > > > - Is TLS 1.2 / TLS 1.3 supported in Geronimo Java Mail 1.6? > > > > If this is the wrong list, please give me an advice which list > > would be > > a better fit. > > > > Thanks in advance, > > Richard Z > > > > > > > > -- Richard Zowalla, M.Sc. Research Associate, PhD Student | Medical Informatics Hochschule Heilbronn – University of Applied Sciences Max-Planck-Str. 39 D-74081 Heilbronn phone: +49 7131 504 6791 mail: richard.zowa...@hs-heilbronn.de web: https://www.mi.hs-heilbronn.de/
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