Hello,
every time I try and send an email from my gmail to my exchange server through FRAMS I get
NDR of 502 Not implemented
once I remove FRAMS from the equation gmail can get through to my exchange server,
anyone have an idea why this is?
Thanks
That's probably because your smtp server advertise the STARTTLS feature but FRAMS can't handle it. Gmail try to start a secure connection but get a "502 not implemented" from FRAMS and give-up.
Currently, I think the only solution is to disable STARTTLS in your smtp server.