Peter the folloing messages may be of interest to you. < ----- The following addresses had permanent fatal errors ----- &lt;&lt;pjoules(a)lyndale-486.-&gt; < < ----- Transcript of session follows ----- <553 lyndale-486.-. config error: mail loops back to me (MX problem?) <554 &lt;pjoules(a)lyndale-486.-&gt;.->... Local configuration error The rest of the crowd may be interested in this. <Is your DOS box pure DOS or do you use Windows? <Do you use any networking software with DOS? Currently no networking with windows and it's windows 3.1. I call it dos box as unlike Win95 win3.x is layered on dos. I do however run trumpet(winsock), FreeAgent, winftp and Netscape3+ via modem to the ISP. <If you use windows 3.x then you will need to have a packet driver <installed via autoexec.bat for your network card and then just install <Trumpet Winsock and configure that. Then I need a packet driver for either purdata PDI8023plus-16 or DECPCA (DE100) card as that what I have. However if I do that how do I run trumpet for the modem and the NI? Allison