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springframework.mail

Poonam Kadu
Ranch Hand

Joined: Jul 21, 2006
Posts: 49
Hi Friends,
A couple of weeks back i written some code to send email using smtp.gmail.com .And it was working fine
But now when i executed the same code it throws the following exception :

Exception in thread "main" org.springframework.mail.MailSendException: Mail server connection failed; nested exception is javax.mail.MessagingException: Unknown SMTP host: smtp.gmail.com;
nested exception is:
java.net.UnknownHostException: smtp.gmail.com
at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:419)
at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:342)
at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:357)
at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:346)
at com.mcs.mailer.SpringMailer.sendMail(SpringMailer.java:66)
at com.mcs.mailer.EmailCompTest.main(EmailCompTest.java:20)
Caused by: javax.mail.MessagingException: Unknown SMTP host: smtp.gmail.com;
nested exception is:
java.net.UnknownHostException: smtp.gmail.com


I have set the following properties :
<property name="host" value="smtp.gmail.com"/>
<!-- smtp.mail.yahoo.com-->
<property name="port" value="587"/>

when i did nslookup i got this
>nslookup smtp.gmail.com
DNS request timed out.
timeout was 2 seconds.
*** Can't find server name for address 121.242.180.190: Timed out
DNS request timed out.
timeout was 2 seconds.
*** Can't find server name for address 121.242.180.211: Timed out
*** Default servers are not available
Server: UnKnown
Address: 121.242.180.190

DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to UnKnown timed-out

What could be the possible problem?I mean is there something wrong with the 'smtp.gmail.com' or some network settings like firewall or something....
Please advice.

Cheers,
Poonam.
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: springframework.mail