I am new at SpamX. Using PB G4 10.4.7 downloaded fine, installed fine, I move between London and LA. LA set it up worked fine. Now in London and keep getting smtp error 535 on every message. All my accounts in AppleMail have the correct outgoing server settings for London (requiring authentication w/password) which I change when I am here, including the main acccount which SpamX uses. Also tried changing SpamX configuration but still no luck.

Any suggestions? Thanks in advance.

An SMTP error 535 means that you have the incorrect credentials entered for user name or password, please double check these.