I'm using mailR for sending emails from within R. This used to work just fine on other machines. That was before my Mac Mini. I can run install.packages(c("rJava", "mailR")) without any problems. However when sending, I run into errors that (based on what has been asked before) seem to be related to Java.
Here is my code:
library(rJava)
library(mailR)
smtp_list = list(host.name = "smtp.sendgrid.net",
port = 587,
user.name = "XXX",
passwd = "XXX",
ssl = T)
body_html_test <- "<html><meta charset='UTF-8'><p>Hello<p></html>"
send.mail(from = "some@adress.com",
to = "my@adress.com",
subject = "This is a test",
body = body_html_test,
encoding="utf-8",
html = TRUE,
smtp = smtp_list,
authenticate = TRUE,
send = TRUE)
NULL
org.apache.commons.mail.EmailException: Sending the email to the following server failed : smtp.sendgrid.net:465
at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1410)
at org.apache.commons.mail.Email.send(Email.java:1437)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at RJavaTools.invokeMethod(RJavaTools.java:386)
Caused by: javax.mail.MessagingException: Could not connect to SMTP host: smtp.sendgrid.net, port: 465;
nested exception is:
javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher suites are inappropriate)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2055)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:697)
at javax.mail.Service.connect(Service.java:386)
at javax.mail.Service.connect(Service.java:245)
at javax.mail.Service.connect(Service.java:194)
at javax.mail.Transport.send0(Transport.java:253)
at javax.mail.Transport.send(Transport.java:124)
at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1400)
... 6 more
Caused by: javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher suites are inappropriate)
at sun.security.ssl.HandshakeContext.<init>(HandshakeContext.java:171)
at sun.security.ssl.ClientHandshakeContext.<init>(ClientHandshakeContext.java:101)
at sun.security.ssl.TransportContext.kickstart(TransportContext.java:238)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:394)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:373)
at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:543)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:348)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:215)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2019)
... 13 more
Error: EmailException (Java): Sending the email to the following server failed : smtp.sendgrid.net:465
At first I was inclined to believe that this has to do with my mailclient but based on what others have asked, this seems to be related to java. The fact that this script runs smoothly on other machines points into that direction as well.
OS version:
$ sw_vers
ProductName: macOS
ProductVersion: 11.2
BuildVersion: 20D64
Java version:
$ java -version
java version "1.8.0_291"
Java(TM) SE Runtime Environment (build 1.8.0_291-b10)
Java HotSpot(TM) 64-Bit Server VM (build 25.291-b10, mixed mode)
R version:
$ R
R version 4.0.5 (2021-03-31) -- "Shake and Throw"
Copyright (C) 2021 The R Foundation for Statistical Computing
Platform: x86_64-apple-darwin17.0 (64-bit)
R Java configuration:
$ R CMD javareconf
Java interpreter : /usr/bin/java
Java version : 1.8.0_291
Java home path : /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home
Java compiler : /usr/bin/javac
Java headers gen.: /usr/bin/javah
Java archive tool: /usr/bin/jar
trying to compile and link a JNI program
detected JNI cpp flags :
detected JNI linker flags : -L$(JAVA_HOME)/lib/server -ljvm
clang -mmacosx-version-min=10.13 -I"/Library/Frameworks/R.framework/Resources/include" - DNDEBUG -I/usr/local/include -fPIC -Wall -g -O2 -c conftest.c -o conftest.o
conftest.c:1:10: fatal error: 'jni.h' file not found
#include <jni.h>
^~~~~~~
1 error generated.
make: *** [conftest.o] Error 1
Unable to compile a JNI program
JAVA_HOME : /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home
Java library path:
JNI cpp flags :
JNI linker flags :
Updating Java configuration in /Library/Frameworks/R.framework/Resources
Done.
Thanks in advance for help.
