Solved

Exchange 2010 SMTP with IPhone and Mail Filter

Posted on 2010-08-26
3
1,069 Views
Last Modified: 2012-05-10
We have an Exchange 2010 server with about 10 iphones.  Recently we have been having spammers send email to our network bypassing our mail filter.  We can setup a rule on our firewall that prohibits smtp connections but that would break our iphone users.  

I was wondering if other people have had this issue and waht they have done to get around it.  Hopefully what I wrote makes sense.  

Please let me know if I am mistaken about how Iphones send out.  

Thanks Again

Baiju
0
Comment
Question by:rightclickinc
  • 2
3 Comments
 
LVL 20

Accepted Solution

by:
woolnoir earned 500 total points
ID: 33534349
In our enterprise we have our iphones connecting to a OWA server (webmail), that ensures that we can place SMTP incoming and outgoing restrictions on the firewall to only allow that protocol to and from messagelabs (who filter our email). The phones work fine going through OWA .. always seemed that by having separation that way it reduces security incidents.

How do you have your iphones configured, directly to the exchange server ? that uses different ports than 25 though ?
0
 
LVL 20

Assisted Solution

by:woolnoir
woolnoir earned 500 total points
ID: 33534385
According to this http://images.apple.com/iphone/business/docs/iPhone_EAS.pdf

they use port 443 communication to the front-end sever - you should be able to block SMTP without effecting the devices.

How is your incoming and outgoing mail filtered ?
0
 

Author Comment

by:rightclickinc
ID: 33534678
Okay so email is transferred through Active Sync and does not use SMTP to send.  I will turn off SMTP and see what happens.  

Thanks for your help.

Baiju
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Lotus Notes – formerly IBM Notes – is an email client application, while IBM Domino (earlier Lotus Domino) is an email server. The client possesses a set of features that are even more advanced as compared to that of Outlook. Likewise, IBM Domino is…
Find out what you should include to make the best professional email signature for your organization.
In this Micro Video tutorial you will learn the basics about Database Availability Groups and How to configure one using a live Exchange Server Environment. The video tutorial explains the basics of the Exchange server Database Availability grou…
The video tutorial explains the basics of the Exchange server Database Availability groups. The components of this video include: 1. Automatic Failover 2. Failover Clustering 3. Active Manager

789 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