I will see if we can get POP authentication before login added into the next version (perhaps post a patch), but for now you will have to use sendmail.
What domains exactly are you having this problem with? Googling that error brings up people having problems with DNS or the domain not being set up properly.
Adrian
What domains exactly are you having this problem with? Googling that error brings up people having problems with DNS or the domain not being set up properly.
Adrian