What you are experiencing is normal. For a fuller explanation see
http://www.postcastserver.com/help/P..._Blocking.aspx

As a general rule, the owner of the SMTP server must match the
entity providing the Internet connection.

The available workarounds are as follows:

1. Use webmail for sending (via your browser).
2. Ask your home ISP if they have a port other than '25' for SMTP.
3. Substitute the SMTP server belonging to your away-from-home connection
This is not practical if you use many different connection providers.
4. If you frequently send from multiple locations, get a free Gmail account,
configure it for POP access, and use it for your sending chores.
Gmail uses port 465 for SMTP, which is not blocked like port 25 is.

--
Gary VanderMolen, MS-MVP (Mail)


"Mengster_Manila" <Mengster_Manila@discussions.microsoft.com> wrote in message news:1C3D1C77-1469-4BBA-AEC8-489E7F9388D0@microsoft.com...
>I have recently been experiencing problems sending emails thru Windows mail.
> My Compaq laptop is new and it uses Windows Vista. I work in sales, therefore
> traveling is part of my job and I always rely on Wifi. This problem recurs
> esp when I try sending emails to different email addresses like yahoo, gmail,
> etc. I don't experience this problem when I directly use my provider email
> website or when I send email to people using the same provider. Here is what
> pops up when the message/s can't be sent:
>
> The message could not be sent. The authentication setting might not be
> correct for your outgoing e-mail [SMTP] server. For help solving this
> problem, go to Help, search for "Troubleshoot Windows Mail", and read the
> "I'm having problems sending e-mail" section. If you need help determining
> the proper server settings, please contact your e-mail service provider.
>
> The rejected e-mail address was 'DGorges@FalconWaterfree.com'. Subject 'Re:
> list of restaurants and chambers of commerce', Account: 'Work Mail', Server:
> 'smtp.eastern.com.ph', Protocol: SMTP, Server Response: '554 5.7.1
> <DGorges@FalconWaterfree.com>: Relay access denied', Port: 25, Secure(SSL):
> No, Server Error: 554, Error Number: 0x800CCC79
>
>
> I have tried applying the suggested solutions in the different threads and I
> can't seem to make any work for me. I esp don't understand the part about
> "Port 25"??
>
> If anyone can give me a detailed step-by-step answer, that would be
> fantastic. Just let me know if you need anymore information to help resolve
> this problem.