Earth to someone Verizon... Earth to verizon... Come in verizon.... come in
Verizon... We have an urgent message for you -
This is called mail debugging 101.
upon a successful authentication to your POP servers, the POP
servers claim that there is no mail in the inbox while your
webmail shows dozen of new unread unopened messages, (you
are presented the printout of a telnet session to port 110
the claim that it is the "MTU on a customer DSL router" that
is causing the problem is wrong especially if the problem
manifests itself on a NON-DSL connection. Making these
claims for several days after three levels of escalation
makes your well-ran operation look incompetent.