How do you know if your email account has been hacked?

Found 30th Dec 2009
Think my Hotmail account might of been stung by a bit of spamming.

Just got a notification failure from MAILER-DAEMON@yahoo.com.

Delivery failure‏

Message from yahoo.com.
Unable to deliver message to the following address(es).

This user doesn't have a yahoo.com account (gmreher@yahoo.com) [0]

This user doesn't have a yahoo.com account (gmreisinger@yahoo.com) [-5]

--- Original message follows.

X-YMailISG: o6JBJiQWLDvwnOHcQ8bmxbHE2iOXh_2U9LQ9IFmtxEiT3ljVVQRa_9dYbO5bzNLK.IecBXjz078jLUaf63tHlLwdD5.khTgx1Za52h_6ugj7f2dH7AF9GfFLywkBsQKyGA6WSnfxB3P0W.Cf2ivT.12odLmw6j5T1juzYUZ7VFoZb.tCu.d1RCHX9Qy_HcGknJLdlaYqPd5ffyk.GB8z7v_1WhEaybdOlPARwks6UMS40C_e1l4vLAMNvHSBWErvIs4IFu9tOvy5qUd62rD5HcPXU7URyHpKbYhiAEPBYeEeA5YdTaXrbrLAoOWnWsaiEfBRHOPxUeadUdXvGILkvrAqiuHlnd6wvF._F1VYSYMM9JyHR2PUIBWaLislhOp5Rv4L0d_TJm4rS7JvdeVJ_fsSmnqA5MZhsqXypjsKfBImXxtTGT2YBGDmROOrjtCXr42du1cM
X-Originating-IP: []
Authentication-Results: mta1020.mail.sk1.yahoo.com from=hotmail.co.uk; domainkeys=neutral (no sig); from=hotmail.co.uk; dkim=neutral (no sig)
Received: from (EHLO bay0-omc3-s2.bay0.hotmail.com) (
by mta1020.mail.sk1.yahoo.com with SMTP; Tue, 29 Dec 2009 21:43:25 -0800
Received: from BAY110-W40 ([]) by bay0-omc3-s2.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.3959);
Tue, 29 Dec 2009 21:42:49 -0800
Return-Path: stevey_p7@hotmail.co.uk
Content-Type: multipart/alternative;
X-Originating-IP: []
From: xxxxxxxxxxxxx
Subject: Someone wants to meet you on. Invite Code: XMAS09
Date: Wed, 30 Dec 2009 05:42:49 +0000
Importance: Normal
MIME-Version: 1.0
X-OriginalArrivalTime: 30 Dec 2009 05:42:49.0306 (UTC) FILETIME=[EBDD83A0:01CA8912]

Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable


Someone at SinglesNET has sent your email an invite @ 2009-12-30 12:42:42.=

Sign up for free and see who wants to meet you. You can also browse other s=
ingles in your area all for free!

Got more than one Hotmail account? Save time by linking them together

Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable


Someone at SinglesNET has sent y=
our email an invite @ 2009-12-30 12:42:42.

Sign up for free and see=
who wants to meet you. You can also browse other singles in your area all =
for free!


New! Receive and respond to ma=
il from other email accounts from within Hotmail t.com/UKM/go/186394593/direct/01/ ' target=3D'_new'>Find out how.=



can anyone make sense of that?

it says i have tried to send a message to those addresses. Weird. I obviously haven't.

thanks to any replies.
Community Updates
These are just spam e-mails hoping you respond, just delete
you need to change your password, yahoo got hacked in october and never told anyone and still wont admit it
your account hasn't been hacked. a spammer has simply used your email address in the "sent from" field in their spam. their spam then hit a dead email account and the mailer daemon bounced it back to you since it thought your account sent it.

this happens so much it is of no concern - and it is technically very very easy to do.

you might want to delete your e-mail details from the OP lol
Cheers for the help guys.
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