B4J Question Sending Mail to port 587

[Swissmade]

Hi all,

I use my Provider to send mails.
The only way to get this done is via Port 25.
When I set the port to 587 (the provider uses) I get a error.
I also need StartTLS so I set this on.

java.lang.RuntimeException: Empty writer returned: 503-All RCPT commands were rejected with this error:
503-503 sender not yet given
503 valid RCPT command must precede DATA
at anywheresoftware.b4a.net.SMTPWrapper$1.run(SMTPWrapper.java:282)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Error sending message: (RuntimeException) java.lang.RuntimeException: Empty writer returned: 503-All RCPT commands were rejected with this error:
503-503 sender not yet given
503 valid RCPT command must precede DATA

Change port back to 25 and StartTLS off, I can send the mails.
Any help for this??

 

[giga]

As you may know. 587 is a secure port SSL or TLS. 25 is not secure.
"503 valid RCPT command must precede DATA" relates to a authentication issue.
the Outgoing Mail Server (SMTP) needs authentication

If allowed you could try port 26

 

[Swissmade]

As you may know. 587 is a secure port SSL or TLS. 25 is not secure.
"503 valid RCPT command must precede DATA" relates to a authentication issue.
the Outgoing Mail Server (SMTP) needs authentication

If allowed you could try port 26

Hi Giga
Will try port 26 otherwise how to solve the authentication issue??

 

[giga]

Take a look at this and maybe this will help.
https://www.b4x.com/android/forum/t...-5-5-1-authentication-required.28992/#content

 

[Swissmade]

https://www.b4x.com/android/forum/th...-5-5-1-authentication-required.28992/#content

Port 26 is block by the Provider.
The other option is funny with a Gmail account I can send mails.

 

[giga]

Something similar to the issue in PHP is here: https://groups.google.com/forum/#!topic/f3-framework/og1EpdeD7o8
However, Can you upload the code you are using that we can view?