On Thursday 04 February 2016 at 10:47:18, Chandran Manikandan wrote:
> 1. Our users received some spam emails which is showing our domain email
> account in From address.
Nothing unusual in that - forged From addresses have been common for many
years.
> But those email account don't have mailbox in my server.
Okay, so they're randomly made up, rather than copied from real emails which
have been seen. Again, nothing too unusual about that.
Are you using DKIM / SPF for your domain? I mean, why do you accept email
apparently from your own domain when it does not come from one of your
authorised servers?
> 2. Second thing is some emails send spam emails in showing from address is
> our server mailbox.
> but i have check to click reply showing different email address and domains
> this reply...@mail.com
So, the "From" header doesn't match the "Reply-To" header. Not so unusual.
> How to fix those above two issues on my server.
Don't accept emails from domains with SPF / DKIM unless they come from
authorised servers, and set up SPF / DKIM for your domain.
Antony.
--
"The problem with television is that the people must sit and keep their eyes
glued on a screen; the average American family hasn't time for it."
- New York Times, following a demonstration at the 1939 World's Fair.
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