Hi, Last week I posted a question about Ex5.5 /2k not sending mail for two sites. thanks for the replies....the quest goes on. One site is solved, changed the connection to stop using system DNS and post directly to a ISP mail server. This site had w2k / Ex2k The other site has w2k/Ex5.5 running and here the problem is still the same, - certain sites/addresses are unmailable. - certain sites/addresses are mailable but after getting a reply the asnwer you send is stuck in the queue. - certain sites/addresses are mailable without any problem, like my own address...I can fill up my mailbox without any problem, replying etc etc. I've changed the internet mail connection from "post.demon.nl" to using "System DNS" to ",ip adress of mail server" (several). Everytime after restarting the Ex internet mail service some message might go out depending on where it's send.... anyone with any idea on how to proceed with this issue please let me know how..... Thanks for any answer grx Rob *********************************************** This Weeks Sponsor OneApp Total Control Control, Secure and Audit your Thin Client Systems http://www.oneapp.co.uk *********************************************** For Archives, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link. http://thethin.net/citrixlist.cfm