On Thu, 18 Feb 2021, at 21:41, Tom Brennan wrote: > On 2/18/2021 12:15 PM, Jeremy Nicoll wrote:
> > How would someone spoof that, unless they had access to my > > mail hosting company's servers? > > ... or coded their own SMTP relay program... Ok, yes, also if they install and customise (in)appropriately their own SMTP server... > But maybe Seymour is talking about the MAIL FROM: envelope item, which > can easily be spoofed. It depends surely on the mail host? If I've done an authenticated login to a reputable mail provider, surely they'll make sure that what they send out will accurately reflect who I am, not who my email client claims? I expect all bets are off if one deliberately uses a disreputable mail host. -- Jeremy Nicoll - my opinions are my own. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
