John Keown wrote:
Then change jobs because you are violating your employment agreement. Our
employees are not permitted to use any email service from our computers
except our corporate server.
Procedure is first discovery results in a reprimand in the employees folder
and they sign a paper they were warned. Second incidence results in
termination.
Speak for yourself. People may find themselves, for whatever reason, having to
use a particular mail server. This may not be against any terms of service or
employment for their particular situation. They may not have any web access.
Their domain administrator is aware of this and has specifically set up the
domain's SPF record (possibly even a per-user exemption) to allow working
under these conditions.
By all means treat such mail to a higher degree of scrutiny than you would for
mail with only a /32 as a valid source, but let's not forget what the "S" in
"SPF" stands for and allow for the possibility that the sender may have a
situation that you hadn't thought of.
Paul.