RE: Java Apache to Office 365

Are you using the JavaMail jar file and a Java or RPG program ?

I guess if you're using RUNJVA you're creating a Java program.

First I would never use RUNJVA.  Use something like the QSH command to run =
your Java or something like the QSHEXEC command in my QShell on I open sour=
ce utility. You can then actually capture a Java return code error as well =
as STDOUT which is Java command line logging.

Word has it that Basic Auth is going away in 2026 so you may want to actual=
ly start looking in to using MS Graph and OAuth2. Or you could look into cr=
eating an Exchange SMTP Connector which will allow your team to use port 25=
 to still send unauthenticated emails via TLS on Port 25 from your public I=
P address. There is some Office365 config required as well as you need to c=
reate an Exchange Connector.

Might want to upgrade your Java version unless you're on an old IBMi.  Mini=
mally 1.8 would be a good idea.

Regards,
Richard Schoen
Web:=A0http://www.richardschoen.net
Email:=A0richard-DiTrGpQEJGItADg8e/3/[email protected]

-----Original Message-----
Today's Topics:
   1. Java Apache to Office 365 (Versfelt, Charles via JAVA400-L)

----------------------------------------------------------------------

message: 1
date: Mon, 17 Nov 2025 18:23:01 +0000
from: "Versfelt, Charles via JAVA400-L" <[email protected]>
subject: Java Apache to Office 365

Hi,
I'm fairly inexperienced in java, I'm mainly an old-school RPG programmer.
We have several Java programs that send e-mails, some with and some without=
 attachments, using Apache commons.
I'm somewhat familiar with the programs.  Our IBMi is on java version "1.6.=
0"

We're switching our e-mail to office 365.
I've gone through the same change with a number of Visual Basic programs, a=
nd now I'm trying to address the IBMi Java programs.

The changes I had to make in my  Visual Basic programs are these:
1. The host has to change to smtp.office365.com 2. SSL has to be enabled.
3. The port used has to be 587.
4. I have to force TSL 1.2 security level.
In Visual Basic, to force TSL 1.2, I had to use command ServicePointManager=
.SecurityProtocol =3D SecurityProtocolType.Tls12

>From the searching I did online, I found some websites talking about sendi=
ng office 365 e-mails in Java, but not a lot specific to Apache Commons.
As I said, I don't want to rewrite the programs if I can avoid it.

As far as I can tell from what I saw online, if all I need is what I change=
d in my VB.net programs, I can change these in my Apache Commons Java E-mai=
l programs like this:
1. email.setHostName("smtp.office365.com");
2. email.setSSLOnConnect(true);
3. email.setSmtpPort(587);

4. System.setProperty("mail.transport.protocol", "smtps"); System.setProper=
ty("mail.smtps.ssl.protocols", "TLSv1.2");

So my program looks like this, passwords and e-mails masked.

HtmlEmail email =3D new HtmlEmail ();

//email.setHostName("exchange.postoffice.net");
System.setProperty("mail.transport.protocol", "smtps"); System.setProperty(=
"mail.smtps.ssl.protocols", "TLSv1.2"); email.setHostName("smtp.office365.c=
om");
email.setSmtpPort(587);
email.setSSLOnConnect(true);
(everything below is original)
try {
 email.setFrom("[email protected]", "Me");
email.setAuthenticator(new DefaultAuthenticator("[email protected]" "xxx")); } ca=
tch (EmailException e1) {  CleanUp(); } When I test this program from the c=
ommand line RUNJVA, the program says Java program completed, but no e-mail =
arrives.
As far as I can tell it's not encountering any errors.  It's just not sendi=
ng an e-mail.
Am I missing something?

Thanks for your help.
Charles Versfelt

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