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Postfix working with home network but not with USB 3G dongle

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linux-howto

http://askubuntu.com – Does postfix with php's mail command get configured during installation based on the network connection? I am asking this because I installed it when I was connected to my home network. and I can send emails no problem. However, when I need to work remotely, and connect to the internet using a USB 3G dongle, I can no longer send out emails from php. When I get back home, and connect to my home network, I can send emails via php perfectly again. (HowTos)

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Submitted by missing on 01/17/2013 – Made popular on 01/17/2013

Stories similar to Postfix working with home network but not with USB 3G dongle

I have the following scenario i must implement using Postfix (but don't know how to begin):

Say we have a domain aaa.com which is hosted somewhere (this is already functioning without any problems).

Hello all,

I was wondering if anyone has any knowledge in this field that they could pass on.

I have a Samsung galaxy note and my network carrier is 3. I am using the phone as a wifi hotspot and connecting it with my laptop.

I've got an O2 PAYG Mobile Broadband USB dongle which I use to connect to the Internet when I'm out and about (takes a long time to become active; If anyone can help with that, that would be nice!). I connect to my Home network using a VPN (pptp), configured through the Network Manager.

I'm trying to set up a smtp server on my domain (wixencafe.net), and i'm using postfix for that.

First thing is, postfix delivers emails coming from outside, that is, if i send an email from gmail.com to wixencafe.net, i get the email in my Mailbox/

Second thing is, if i send an email from wixencafe.net (from the server cli via mutt -f Maildir/) to gmail.com, i get it too, so i guess that means

have some problems in doing my project, my project title is ' in investigate into implementation of certification authority with small network ' ( with using Postfix, openSSL ) and i have builded up two different networks using debian and after that i need to make a mail server, so i configured Postfix and made a mail server, i can send and receive emails on both networks.

Hi I upgraded to f17 and suddenly evolution won't send emails.

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My question is, how can I configure Postfix to use an external SMTP?

I have a mail server set up using virtual users and postfix that i can send mail through using my Windows Phone 8 mail client but when i try and send a test email through Outlook 2013 with or without TLS enabled Outlook times out.

While my wireless is generally working, there's one problem: I can't connect to my home network through it on my laptop.