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Matthew McGillis commented on NET-650: -------------------------------------- This is what I get when using your imapproxy2 code with a hostname: connect error: java.lang.NullPointerException connect error: java.lang.NullPointerException I also get the same thing when I use an IP address. > 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 > 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} -- This message was sent by Atlassian JIRA (v7.6.3#76005)