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https://issues.apache.org/jira/browse/NET-650?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gary D. Gregory resolved NET-650.
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Fix Version/s: 3.10.0
Resolution: Fixed
> IMAPClient over proxy doesn't properly resolve DNS
> --------------------------------------------------
>
> Key: NET-650
> URL: https://issues.apache.org/jira/browse/NET-650
> Project: Commons Net
> Issue Type: Bug
> Components: IMAP
> Affects Versions: 3.6
> Reporter: Matthew McGillis
> Priority: Major
> Fix For: 3.10.0
>
> Attachments: imapproxy.java, imapproxy2.java, socketproxy.java
>
>
> IMAPClient when configured to use a socks proxy is not able to resolve DNS
> names through the proxy.
> See attached sample code, if I use it with:
> {noformat}
> $ java -DsocksProxyHost=localhost -DsocksProxyPort=16003 -cp
> .:./commons-net-3.6.jar imapproxy imap.server.test.com user1 userpass
> connect error: java.net.UnknownHostException: imap.server.test.com: unknown
> error
> {noformat}
> vs if I use it with the appropriate IP:
> {noformat}
> $ java -DsocksProxyHost=localhost -DsocksProxyPort=16003 -cp
> .:./commons-net-3.6.jar imapproxy 10.250.3.127 user1 userpass
> * OK IMAP4rev1 proxy server ready
> IMAP: 10.250.3.127 143
> AAAA LOGIN *******
> AAAA OK [CAPABILITY IMAP4rev1 ACL BINARY CATENATE CHILDREN CONDSTORE ENABLE
> ESEARCH ESORT I18NLEVEL=1 ID IDLE LIST-EXTENDED LIST-STATUS LITERAL+
> LOGIN-REFERRALS MULTIAPPEND NAMESPACE QRESYNC QUOTA RIGHTS=ektx SASL-IR
> SEARCHRES SORT THREAD=ORDEREDSUBJECT UIDPLUS UNSELECT WITHIN XLIST] LOGIN
> completed
> AAAB LOGOUT
> * BYE 10.250.3.127 Zimbra IMAP4rev1 server closing connection
> AAAB OK LOGOUT completed
> {noformat}
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