Re: Can anyone use my domain name to send outgoing emails?
- From: "Michael Santovec" <michael_santovec@xxxxxxxxxxx>
- Date: Wed, 7 May 2008 11:39:30 -0700
There's nothing you can do to prevent anyone from sending an e-mail with
your e-mail address as the From header, just as you can't prevent anyone
from sending a postal mail and putting your name and address as the
return address.
I don't know how much checking Hotmail does.
A receiving mail server can check that the IP address of the sending
server matches the domain name it claims to be.
It could also check that the From header domain matches the domain that
the mail server claims to be. But there are legitimate reasons why they
could differ, as when a sending mail server supports multiple domains.
--
Mike - http://pages.prodigy.net/michael_santovec/techhelp.htm
"Eric" <Eric@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:B59ED7E3-53E6-47D9-92CA-23B3F9815714@xxxxxxxxxxxxxxxx
Thank you very much for your suggestions
If anyone can put anybody else's email address in the sender email
address
field without authorization required, can they receive anybody else's
address?
Furthermore, if the domain name for email address uses dynamic IP
Address,
which is not allowed to send into any hotmail account based on their
policy.
Can anyone put anybody's else email address, which domain name uses a
static
IP Address, and send into any hotmail account. Even through anyone is
using a
dynamic IP Address, but from the viewpoint of hotmail server, which
can see a
static IP Address, and skipping the hotmail policy.
I look forward to your reply
Thank you very much for any suggestions
Eric
"N. Miller" wrote:
On Wed, 7 May 2008 07:28:08 -0700, Eric wrote:
For example, enquiry@xxxxxxx, @abc.com is my domain name, receiving
uses POP3, and sending email uses SMTP, can any unknown sender send
any
out-going email under John@xxxxxxx without getting any authority
from the
source abc.com? If they can successfully send out email, do they
access my
SMTP illegally?
Thanks in advance for any suggestions
Anybody can put anybody else's email address in the sender email
address
field. No authorization required (except in rare cases, where the
service
provide requires verification of the sender email address). They
normally
can't access any SMTP message submission server without access
permissions
granted by the server administrator; unless the server is
intentionally
configured as an open relay.
--
Norman
~Shine, bright morning light,
~now in the air the spring is coming.
~Sweet, blowing wind,
~singing down the hills and valleys.
.
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