======Socket Error 10049 - The specified address is not available from the local computer====== This error normally means that you have entered an invalid address on the ''IP Address to Bind To'' entries on the Services page in the VPOP3 settings. The addresses entered here should be either '''' or the IP address of a LAN adapter in the PC running VPOP3. Alternatively, this can be caused by timing issues related to a DNS lookup. On the ''Diagnostics'' tab in VPOP3, press the ''TCP/IP Tuning Options'' button and tick ''Use Synchronous DNS'' {{tag>winsock error_code 10049}}