How to detect forged From and Reply-to addresses from your own domain

[Alex Neuman]

That would be why I always enable 587 (MSA) with auth, or 465 (SMTPS) on my MTA's.

On Mar 6, 2010, at 12:19 PM, Mark Sapiro wrote:

> My ISP redirects all port 25 connects to its own servers so even if I
> know what I'm doing, I can't use your MTA for my outgoing mail for this
> account.
> 
> Now, all my replies from home to my co-workers will be seen as spam
> because they are From: my work address, but the sending MTA is my home ISP.
> 
> The same problem exists if SPF is used.