Solved

out of office reply from many unknown persons

Posted on 2014-01-06
7
527 Views
Last Modified: 2014-03-09
Hello
During the holidays we received a lot of out of office mails.
Unfortunately there are many people we didn't have on our recipient lists.

Only real clients should become our emails, but lot of them forward those emails to other company's and users (although they are not allowed).

Can someone help me to understand how does the out of office replay finds a way back to our Mailbox?
We are using Windows Server 2008 R2, Exchange 2012 and Outlook 2007.
0
Comment
Question by:HelpdeskJBC
7 Comments
 
LVL 19

Expert Comment

by:Delphineous Silverwing
ID: 39763145
It is not uncommon for SPAMmers to use a spoofed e-mail address as the FROM on their outgoing junk mail.  In these cases, it is likely that a spammer used your e-mail address and you are getting the automatic replies as a result.

There isn't much you can do about it.
0
 
LVL 24

Expert Comment

by:diverseit
ID: 39763232
Hi HelpdeskJBC,

Are the OOO emails coming from your staff, fake internal addresses or just random addresses?

Have you diagnosed the headers?

Without knowing any details, I'd chalk it up to spam. You can use SPF records set to hard fail. What type of Anti-Spam Engine are you using?
0
 
LVL 32

Expert Comment

by:nappy_d
ID: 39763600
This is spoofing as diverseit as responded.

How can you stop it? You can't.  You can however reduce it with your OOO messages.

Since you are using Outlook and exchange, if you set our OOO for external contacts, set it to only reply to "my contacts only".  By doing this, if a spammer is not in your address book, hey won't a response which helps validate your email address for them to spoof.

OOO Settings
0
Zoho SalesIQ

Hassle-free live chat software re-imagined for business growth. 2 users, always free.

 

Author Comment

by:HelpdeskJBC
ID: 39764299
Hello and thank you for the reply

the out of office messages are from real people some of them are also in contact with us but not on the distribution list for this kind of information we are getting the Out of Office reply from.
0
 

Author Comment

by:HelpdeskJBC
ID: 39764306
OOO is from outside other companies other people (20% known people, 100% known companies)


Lets say customer A has forwarded to a fried B and both of them are on holiday --> ooo
Why do we receive the ooo from friend B? is this possible during the forwarded email?

So for the Email Program on friend B it must look like that the Email from our side is addressed to B --> so it would be normal to send ooo to us?
normally ooo should go back to the forwarder Customer A?
0
 
LVL 24

Accepted Solution

by:
diverseit earned 500 total points
ID: 39764389
This can happen for a number of reasons. Here are a few:

Outlook Client Rules.
OOO Rules...just like Outlook Client Rules there are OOO Rules.
Transport Rules

Any one of these can trigger and email to you if you are on one of their DGs. Hence you receiving an OOO for a recipient you never sent to. OOO responds to current sender - it doesn't matter who the email originated from.

Make sense?
0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

Local Continuous Replication is a cost effective and quick way of backing up Exchange server data. The following article describes the steps required to configure Local Continuous Replication. Also, the article tells you how to restore from a backup…
Marketers need statistics and metrics like everybody else needs oxygen. In this article we explain how to enable marketing campaign statistics for Microsoft Exchange mail.
To show how to create a transport rule in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Mail Flow >> Rules tab.:  To cr…
To show how to generate a certificate request in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.:  First we need to log into the Exchange Admin Center. Navigate to the Servers >> Certificates…

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now