Re: Can anyone use my domain name to send outgoing emails?

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

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 email
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 email
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.

.

Relevant Pages

  • Re: Problems Sending Mail
    ... Here's the text of the SMTP trace - it looks fine to me, ... to my Hotmail account, the message also arrives 100% of the time. ... if I send a message through our Exchange SMTP virtual server ...
    (microsoft.public.exchange.admin)
  • Re: Can anyone use my domain name to send outgoing emails?
    ... If they operate their own SMTP server they can put anything they want in the ... If anyone can put anybody else's email address in the sender email address ... and send into any hotmail account. ...
    (microsoft.public.windows.inetexplorer.ie6_outlookexpress)
  • Re: Can anyone use my domain name to send outgoing emails?
    ... If anyone can put anybody else's email address in the sender email address ... and send into any hotmail account. ... and skipping the hotmail policy. ... :> granted by the server administrator; ...
    (microsoft.public.windows.inetexplorer.ie6_outlookexpress)
  • Re: server problem
    ... Try setting up your Hotmail account in OE properly instead of just guessing? ... Account: 'POP3', Server: 'SMTP', Protocol: SMTP, ...
    (microsoft.public.windows.inetexplorer.ie6_outlookexpress)
  • Re: Why wont sent messages leave the outbox while connected by di
    ... > unable to connect to your outgoing (SMTP) e-mail server. ... > problem sending. ... Can you receive on your Hotmail account when you're at home? ...
    (microsoft.public.outlook.general)