Socket error in ActionMailer class

I am getting sporadic socket error in actionmailer class. Anyone has
solution for this? On refresh the mail is send properly. It does not
happen everytime.

SocketError in Solution#create_zone
getaddrinfo: no address associated with hostname.
RAILS_ROOT:
C:/DOCUME~1/JONFER~1/LOCALS~1/Temp/tar2rubyscript.d.1424.1/zdc/config/…

Application Trace | Framework Trace | Full Trace
C:/DOCUME~1/JONFER~1/LOCALS~1/Temp/eee.zdc.exe.2/lib/net/protocol.rb:206:in
initialize' C:/DOCUME~1/JONFER~1/LOCALS~1/Temp/eee.zdc.exe.2/lib/net/protocol.rb:206:inold_open’
C:/DOCUME~1/JONFER~1/LOCALS~1/Temp/eee.zdc.exe.2/lib/timeout.rb:56:in
timeout' C:/DOCUME~1/JONFER~1/LOCALS~1/Temp/eee.zdc.exe.2/lib/timeout.rb:76:intimeout’
C:/DOCUME~1/JONFER~1/LOCALS~1/Temp/eee.zdc.exe.2/lib/net/protocol.rb:206:in
old_open' C:/DOCUME~1/JONFER~1/LOCALS~1/Temp/eee.zdc.exe.2/lib/net/smtp.rb:393:indo_start’
C:/DOCUME~1/JONFER~1/LOCALS~1/Temp/eee.zdc.exe.2/lib/net/smtp.rb:378:in
start' C:/DOCUME~1/JONFER~1/LOCALS~1/Temp/eee.zdc.exe.2/lib/net/smtp.rb:316:instart’
#{RAILS_ROOT}/app/controllers/solution_controller.rb:346:in
`invite_selected_members’