smtp mail got stuck in the queue folder

hi all, my smtp virtual server is not sending out the emails ... they are all stuck in the queue folder...

anyone know what's wrong ? i've spent the whole day try to figure it out... but still no luck..

Does your ISP allow traffic on port 25?

Look at the domain that it is trying to send to and then do a telnet to its mx record on port 25 from the command line:

c:\>telnet mail.example.com 25

If that does not return the header information at the top, then something is blocking (probably a firewall).

If the two previous posters didn't get the problem solved, try checking the email routing priority of your emails on the smtp server. I once had the issue that the emails were such low priority that they sat forever even though there was no other traffic.

hi,

how do i know if my isp is blocking port 25? if it is blocked then what port should i change it to?

hi,

the smtp virtual server is installed on my own pc... so do i telnet to my own pc?

i've tried the smtp test onsupport.microsoft.com/kb/153119

in the last step i get this "250 2.6.0 <ASUSiwW7SanHzY8FNud00000002@.ASUS> Queued mail for delivery"

If you are testing from home and have something like COX, Charter, RoadRunner, etc. Most of them block port 25 (except to their mail servers). If you are having problems from work (with a business broadband connection) it may be something else.

hi,

i'm testing my smtp virtual server from home. and my ip address is dynamic not static... will the be a problem too?

my isp is netvigator from hong kong... if they blocked port 25 then do i just need to change the smtp's port number? i've tried changing it to 2525 .. but still no luck.

does anyone have any suggestions or solutions? i really need to to be able to send mail with my asp.net web app. Please HELP!!! thanks

i think you must check out DSN Settings.

i think you must check out DNS Settings.

You forget to start SMTP server. Click on SMTP in IIS then click on Start.

hi munishbhatia,

can you please explain a bit more on what u mean by check dns settings?

my pc is connected to a router which shares the internet connection and i have forwarded port 25 in the router

hi satalaj, my smtp server is running ...

You really need to have an offical email server for this. Your mail has to know how to find its intended recipent. Outgoing port 25 is not usually an issue but incoming is a whole different problem.

I would suggest a smart host or similar to route your mail.

Bottom line is that it sounds like a configuration issue. Check your smtp within IIS and mostly you will need to just monkey with it as there are a million possibilites

Can you disable the firewall temporary?