I need to Changes Letter OutHouing Server on-fly

Problem synopsis:
I am using several internet providers to get into Internet (there are several Internet Connections on my PC)
Each internet provider has his own SMTP server (outgouing server). If i decide to change the Internet connection - i begin using an Internet Connection that differs from my default Internet Connection - then i start having problems with sending letters because new Internet Connection has different SMTP server.
Of cause I can change SMTP server for all mail accounts in my Outlook but it is not useful if i change Internet Connection often or If I use other mail client program (the Bat)

Problem solution:
1. Manually change SMTP server for all accounts in my Mail Client Program(OutLook,  The Bat, ect) everytime when i change Internat Connection. (VERY INCONVENIENT and I don't want to do it)
2. Change SMTP for each letter that is going to be send on the System level. (I don't know how :( ).

I would like to make a program that will determine what Internet Connection is active and depending on this connection will change the mail OUTGOUING server on fly.
penichAsked:
Who is Participating?
 
AvonWyssConnect With a Mentor Commented:
There are free RAS/DialUp components available for Delphi which will allow you to monitor the state of your connections. Now, whenever a connection is made, I'd replace the HOSTS file with one customized fr your needs. The HOSTS file is a text file which is used when Windows tries to resolve host names before it queries a DNS server. Therefore, if you define a a name there (for instance, "SMTP") and set its IP depending on the provider SMTP server, you'll not have to change the configuration of any email application.

Windows 95/98/ME:
The HOSTS file (NO extension!) is to be found in the WINDOWS directory. The file may not yet exist, but there will at least be a HOSTS.SAM (SAMple) file which you can use as template.

Windows NT/2000/XP:
The HOSTS file is to be found in the (windows)\SYSTEM32\DRIVERS\ETC directory.

RAS components:
http://www.torry.net/ras.htm
0
 
penichAuthor Commented:
Thanks a lot AvonWyss!!!
I tested what you told me and figured out that it works
I appritiate it and already use this program
If you are interesting in it - here is the program i wrote
http://penich.tomsk.ru/SMTPSwitch.exe
0
 
AvonWyssCommented:
penich, glad that I was able to help! Since I have a cable connection here, I don't need to switch ISPs, but I appreciate you posting the link here. Have a nice weekend!
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.