Since you didn't quote the solution you used, I'll point out that the syntax to avoid MX lookups is to enclose a hostname or IP address in []'s.
Thanks. I'm not sure that would have solved my specific problem (which I may not have described too well). I just tried it, and it doesn't look like it would work for me. In order for it to work, I would have had to be able to: echo "some message" | mail wpd@[mycompany.com] -s "test" and add the internal IP address of our SMTP server to my /etc/hosts file. In that manner, sendmail would not look for the MX record for mycompany.com (because it was in brackets) and would, instead, find the internal IP address from my /etc/hosts. That is precisely the sort of solution for which I was looking, assuming that it worked. I just tried this and, my sendmail didn't like the @[mycompany.com] syntax in my email address. Instead, putting in the internal IP address of our SMTP server as the SMART_HOST, solved the problem, though not in the manner I was originally envisioning. Anyway, thank you again to the folks who responded. --wpd
