Firstly, I should point out that I’m not Linux systems admin by trade, I’m a web developer / designer but unfortunately I’ve been landed with managing our company server…hope someone can help.
I have primary domain (for example www.domain.com) i also have www.domain.co.uk and www.domain.org.uk and both both are aliases of the .com address. Both point to and load .com address but when mail is send through the alias domains i get the error '553 sorry, that domain isn’t on my list of allowed rcpthosts; not valid cert for gateway (#5.7.1)
Any ideas? the OS is CentOs 5 and I have plesk as my control panel
thanks in advance