Spring Boot 1.2.5.RELEASE - Sending E-mail via Gmail SMTP
Solution 1
It looks like there's a regression/behaviour change in Java Mail. The change is in both 1.5.3 and 1.5.4. Your app works with Boot 1.2.0 as it uses Java Mail 1.5.2. It fails with Boot 1.2.5 as it uses Java Mail 1.5.4.
The problem in 1.5.3+ appears to be that the SMTP transport connects on port 465 and GMail expects an SSL handshake. Java Mail incorrectly thinks it's not using SSL so it never initiates the handshake and the connection attempt (eventually) times out. You can convince Java Mail to do the right thing by being explicit about the use of SSL. Add the following to application.properties
:
spring.mail.properties.mail.smtp.ssl.enable = true
Solution 2
It looks like it is a regression. I have created #3624 to investigate the issue. Thanks for the sample project!
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InsFi
Updated on April 05, 2020Comments
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InsFi about 4 years
Firstly, I need to say that sending email with 1.2.0.RELEASE works fine
application.properties:
spring.mail.host = smtp.gmail.com spring.mail.username = *****@gmail.com spring.mail.password = **** spring.mail.properties.mail.smtp.auth = true spring.mail.properties.mail.smtp.socketFactory.port = 465 spring.mail.properties.mail.smtp.socketFactory.class = javax.net.ssl.SSLSocketFactory spring.mail.properties.mail.smtp.socketFactory.fallback = false
pox.xml
<parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.2.0.RELEASE</version> <relativePath/> </parent>
.......
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-mail</artifactId> </dependency>
After changing parent version to 1.2.5.RELEASE email sending hasn't worked
Docs says: If spring.mail.host and the relevant libraries (as defined by spring-boot-starter-mail) are available, a default JavaMailSender is created if none exists.
So i've added<dependency> <groupId>javax.mail</groupId> <artifactId>mail</artifactId> <version>1.4.7</version> </dependency>
It hasn't helped and then i've replaced it to
<dependency> <groupId>com.sun.mail</groupId> <artifactId>javax.mail</artifactId> <version>1.5.4</version> </dependency>
Also i've tried
spring.mail.host = smtp.gmail.com spring.mail.username = *****@gmail.com spring.mail.password = **** spring.mail.port = 465
Result the same.
It's not a problem to create and configure @Bean manually. But I want to use all beauty of Spring Boot.
Please point me to my mistakes.Thanks in advance
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dunni almost 9 yearsSo what is the error message?
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InsFi almost 9 years@dunni, There is not error message. Sender thread simply freezes
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Stephane Nicoll almost 9 yearsSo you have a sample project using Spring Boot 1.2.0 and it works. And then you just change to spring boot 1.2.5 and then it breaks? Nothing has changed between those two versions as far as I can see. Can you share the project?
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InsFi almost 9 years@StéphaneNicoll , link I've replaced my credentials with ***. Now it's 1.2.0.RELEASE
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Juanal almost 8 yearsWorked for me as well. I had an additional error due to my antivirus. Once I disabled mail protection on it, the message was sent successfully
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Eric Spiegelberg over 7 yearsThis answer was very useful. I used it, along with the use of spring-boot's "spring.mail.test-connection=true", to quickly solve my issue.