Error sending SES Unable to execute HTTP request: email.sa-east-1.amazonaws.com

[GuilhermeCouto]

Describe the bug

Some times I get this error when sending an email with SES:

I am uysing aws-java-sdk-ses version 1.11.760

Expected behavior

Send the email

Current behavior

Error message: Unable to execute HTTP request: email.sa-east-1.amazonaws.com com.amazonaws.SdkClientException: Unable to execute HTTP request: email.sa-east-1.amazonaws.com at com.amazonaws.http.AmazonHttpClient$RequestExecutor.handleRetryableException(AmazonHttpClient.java:1201) at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeHelper(AmazonHttpClient.java:1147) at com.amazonaws.http.AmazonHttpClient$RequestExecutor.doExecute(AmazonHttpClient.java:796) at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeWithTimer(AmazonHttpClient.java:764) at com.amazonaws.http.AmazonHttpClient$RequestExecutor.execute(AmazonHttpClient.java:738) at com.amazonaws.http.AmazonHttpClient$RequestExecutor.access$500(AmazonHttpClient.java:698) at com.amazonaws.http.AmazonHttpClient$RequestExecutionBuilderImpl.execute(AmazonHttpClient.java:680) at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:544) at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:524) at com.amazonaws.services.simpleemail.AmazonSimpleEmailServiceClient.doInvoke(AmazonSimpleEmailServiceClient.java:5650) at com.amazonaws.services.simpleemail.AmazonSimpleEmailServiceClient.invoke(AmazonSimpleEmailServiceClient.java:5617) at com.amazonaws.services.simpleemail.AmazonSimpleEmailServiceClient.invoke(AmazonSimpleEmailServiceClient.java:5606) at com.amazonaws.services.simpleemail.AmazonSimpleEmailServiceClient.executeSendRawEmail(AmazonSimpleEmailServiceClient.java:4008) at com.amazonaws.services.simpleemail.AmazonSimpleEmailServiceClient.sendRawEmail(AmazonSimpleEmailServiceClient.java:3980) at com.core.MailManager.sendBookingInvite(MailManager.java:843) at com.core.MailManager.sendNewBooking(MailManager.java:1129) at com.resources.BookingResource$15.run(BookingResource.java:3669) at java.base/java.lang.Thread.run(Thread.java:829) Caused by: java.net.UnknownHostException: email.sa-east-1.amazonaws.com at java.base/java.net.InetAddress$CachedAddresses.get(InetAddress.java:797) at java.base/java.net.InetAddress.getAllByName0(InetAddress.java:1509) at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1368) at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1302) at com.amazonaws.SystemDefaultDnsResolver.resolve(SystemDefaultDnsResolver.java:27) at com.amazonaws.http.DelegatingDnsResolver.resolve(DelegatingDnsResolver.java:38) at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:112) at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:374) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at com.amazonaws.http.conn.ClientConnectionManagerFactory$Handler.invoke(ClientConnectionManagerFactory.java:76) at com.amazonaws.http.conn.$Proxy117.connect(Unknown Source) at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:393) at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186) at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) at com.amazonaws.http.apache.client.impl.SdkHttpClient.execute(SdkHttpClient.java:72) at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeOneRequest(AmazonHttpClient.java:1323) at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeHelper(AmazonHttpClient.java:1139)

Steps to Reproduce

My code(just part of it)

`
AmazonSimpleEmailService client =
AmazonSimpleEmailServiceClientBuilder.standard()
// Replace US_WEST_2 with the AWS Region you're using for
// Amazon SES.
.withRegion(Regions.SA_EAST_1).build();

        // Print the raw email content on the console
        //PrintStream out = System.out;
        //message.writeTo(out);

        // Send the email.
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
        message.writeTo(outputStream);
        RawMessage rawMessage = 
        		new RawMessage(ByteBuffer.wrap(outputStream.toByteArray()));

        SendRawEmailRequest rawEmailRequest = 
        		new SendRawEmailRequest(rawMessage)
        		    //.withConfigurationSetName(CONFIGURATION_SET)
                ;
        
        client.sendRawEmail(rawEmailRequest);`

Possible Solution

No response

Context

No response

AWS Java SDK version used

1.11.760

JDK version used

11

Operating System and version

Amazon Linux 2

[debora-ito]

Hi @GuilhermeCouto, thank you for reaching out. If you search for UnknownHostException in this repo you'll find some reports of the same error. See here one relevant reply: #1503 (comment).