Why won’t Outlook work via WiFi on my laptop?

Kamil K December 27, 2011

My father has full access to the Internet through Wifi all the time, but Microsoft Outlook email only works when plugged into my router via an ethernet cable – not through Wifi. Everything else works flawless on Wifi. It’s a Dell laptop running Windows XP Home. Any ideas?

  1. Bryon
    July 26, 2012 at 11:37 pm

    Why doesn't Outlook work when using wifi?

  2. Anonymous
    December 27, 2011 at 10:00 am

    How to Configure Outlook Express for WiFi

    unless it's blocking outbound port 25 TCP

    set up your SMTP server details in Outlook. Look in your email account settings for outgoing SMTP server settings.

    many ISPs have outgoing mail filters in place so that viruses can't send out spam from multiple computers

    • Koz83
      December 27, 2011 at 7:20 pm

      What do I do if outbound port 25 TCP is blocked?  Wouldn't it be blocked via an Ethernet cable too?

      • Anonymous
        December 27, 2011 at 8:28 pm

        read this

        TCP Port 25 doesn't always mean that port won't pass traffic - it could just mean it will only pass specific types of traffic, such as SMTP.

        Use TCP Port 587 For Mail Submission

        1) Open Outlook.2) Tools -> Accounts3) go to the "Mail" tab.4)
        select the account and click "Properties".5) Go to the "Advanced" Tab in the
        new window.6) Set the "Outgoing mail (SMTP)" option to 587 from 25. Hit
        "Ok".Outlook should now use port 587 for sending mail.

        is it the first time that you encounter this wifi problem. Because if you read this
        2007 Outlook will not send email from wifi connections? but outlook express works fine?

        • Koz83
          December 27, 2011 at 9:51 pm

          Okay, thank you, I'll try asap.

        • Kamil
          January 8, 2012 at 10:41 pm

          I tried changing the port number, but there's no "Outgoing mail (SMTP)" - all I see is the attached pic.  It's Outlook 2003.

        • Ramesh
          February 9, 2012 at 1:07 am

          Thanks bro

        • Godwin
          June 4, 2012 at 9:47 am

          amazing... My outlook and internet works everywhere but not in my new office where outlook cannot send mails. I have just changed the outgoing port to 587 and everything worked like magic...
          Thanks a ton!

        • am
          July 25, 2012 at 12:35 pm

          Thank you!!!

    December 27, 2011 at 9:32 am

    Hello, what happens when you try using outlook with wireless?  Does it give you any error?  Does outlook open at all? 

    • Koz83
      December 27, 2011 at 7:16 pm

      It opens and tries to connect but fails.  He can see and click emails, but cannot check for incoming or send any out.  Thanks, I'll look this weekend.

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