cannot sync iphone with exchange 2003 server when on internal wifi

Posted on 2011-10-20
Last Modified: 2012-05-12
hi, I have an iphone 3 that used to sync with my exchange server when in the office.
I have since taken the sim card out and use the phone just for emails. The phone will sync when i am using a remote wifi. But wont on the internal office wifi.

On the so called activesync settings, i have the external IP in the server name.
Is it not working, because the phone is looking at the external site, from with in the external IP ?

it did work for a good few months internally with no sim. I just ocnfused.

many thanks
Question by:total123
    LVL 76

    Accepted Solution

    LVL 12

    Expert Comment

    Have you added any firewall or virus software recently?  Sounds like the connection is being rejected....
    LVL 3

    Expert Comment

    It's DNS most likely.

    Olyou need to create a zone internally that points your mail servers external address to the local address of exchange.

    Featured Post

    Do email signature updates give you a headache?

    Do you feel like all of your time is spent managing email signatures? Too busy to visit every user’s desk to make updates? Want high-quality HTML signatures on all devices, including on mobiles and Macs? Then, let Exclaimer solve all your email signature problems today!

    Join & Write a Comment

    "Migrate" an SMTP relay receive connector to a new server using info from an old server.
    Use these top 10 tips to master the art of email signature design. Create an email signature design that will easily wow recipients, promote your brand and highlight your professionalism.
    In this video we show how to create a Resource Mailbox in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: Navigate to the Recipients >> Resources tab.: "Recipients" is our default selection …
    In this video we show how to create an email address policy 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…

    745 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

    14 Experts available now in Live!

    Get 1:1 Help Now