How to send email with vs2005?

[=?Utf-8?B?Q2hlZg==?=]

I can use outlook2003 to send email，but I cann't use this code below to send
email.
Please help me to test this code and instruct me how to solve this problem
in detail.

software environment： VS2005 + XP.-- I have disabled firewall
hardware enviornmnet：t elcom's modem connects hub，hub connects two
computers.。-- I also tried to connect computer to modem directly,but I can
surf internet, not send email with code.

=============== ==============
System.Net.Mail .SmtpClient client = new SmtpClient();
client.Host = "smtp.gmail.com ";
client.Port = 465;
client.UseDefau ltCredentials = false;
client.Credenti als = new System.Net.Netw orkCredential(" uid", "pwd");
//I also try to use full email address to replace uid. It didn't work.
client.Delivery Method = SmtpDeliveryMet hod.Network;

System.Net.Mail .MailMessage message = new
MailMessage("ui *@hotmail.com", "ui*@hotmail.co m", "Subject",

"Body");
message.BodyEnc oding = System.Text.Enc oding.UTF8;
message.IsBodyH tml = true;

try
{
client.Send(mes sage);
Response.Write( "Email successfully sent.");
}
catch (Exception ex)
{
Response.Write( "Send Email Failed." + ex.ToString()); ;
}
===============

[sloan]

I have no idea.

Experimentation showed that for 1.1 .. one of those ports worked.
and for 2.0, only the other one worked.
????

Huh? I'm with you, but I have no idea.


"Chef" <Ch**@discussio ns.microsoft.co mwrote in message
news:21******** *************** ***********@mic rosoft.com...

If I use gmail as smtp server, what the different between port 587 and

port

465 is?

I just check gmail online help, it recommend that we use port 465. Why?

Waht

is the reason you used port 587?

Thanks in advance!

"sloan" wrote:

I have downloadable examples here:

2/8/2006
Smarter Email/Smtp setup with DotNet Configuration Sections (1.1 and

2.0)

http://sholliday.spaces.live.com/blog/
"Chef" <Ch**@discussio ns.microsoft.co mwrote in message
news:7A******** *************** ***********@mic rosoft.com...

I can use outlook2003 to send email,but I cann't use this code below

to

send

email.
Please help me to test this code and instruct me how to solve this

problem

in detail.
>
>
>
software environment: VS2005 + XP.-- I have disabled firewall
hardware enviornmnet:tel com's modem connects hub,hub connects two
computers.?-- I also tried to connect computer to modem directly,but I

can

surf internet, not send email with code.
>
=============== ==============
System.Net.Mail .SmtpClient client = new SmtpClient();
client.Host = "smtp.gmail.com ";
client.Port = 465;
client.UseDefau ltCredentials = false;
client.Credenti als = new System.Net.Netw orkCredential(" uid",

"pwd");

//I also try to use full email address to replace uid. It didn't work.
client.Delivery Method = SmtpDeliveryMet hod.Network;
>
System.Net.Mail .MailMessage message = new
MailMessage("ui *@hotmail.com", "ui*@hotmail.co m", "Subject",
>
"Body");
message.BodyEnc oding = System.Text.Enc oding.UTF8;
message.IsBodyH tml = true;
>
try
{
client.Send(mes sage);
Response.Write( "Email successfully sent.");
}
catch (Exception ex)
{
Response.Write( "Send Email Failed." + ex.ToString()); ;
}
===============

[sloan]

Not really, unless I was sitting next to you (or at least on your network).

I've found smtp email sending is experimentation sometimes.

Thus why I built the "smarter email configuration" model.

Because I'd get different behavior

at work
at home
using dialup somewhere.

Sometimes its an art, not a science.


"Chef" <Ch**@discussio ns.microsoft.co mwrote in message
news:31******** *************** ***********@mic rosoft.com...

Thank you very much.

Your code is really helpfull. It worked with port 587, not 465 on my pc.

One

more thing, could you tell me what the problem is with my code?
"sloan" wrote:

I have downloadable examples here:

2/8/2006
Smarter Email/Smtp setup with DotNet Configuration Sections (1.1 and

2.0)

http://sholliday.spaces.live.com/blog/
"Chef" <Ch**@discussio ns.microsoft.co mwrote in message
news:7A******** *************** ***********@mic rosoft.com...

I can use outlook2003 to send email,but I cann't use this code below

to

send

email.
Please help me to test this code and instruct me how to solve this

problem

in detail.
>
>
>
software environment: VS2005 + XP.-- I have disabled firewall
hardware enviornmnet:tel com's modem connects hub,hub connects two
computers.?-- I also tried to connect computer to modem directly,but I

can

surf internet, not send email with code.
>
=============== ==============
System.Net.Mail .SmtpClient client = new SmtpClient();
client.Host = "smtp.gmail.com ";
client.Port = 465;
client.UseDefau ltCredentials = false;
client.Credenti als = new System.Net.Netw orkCredential(" uid",

"pwd");

//I also try to use full email address to replace uid. It didn't work.
client.Delivery Method = SmtpDeliveryMet hod.Network;
>
System.Net.Mail .MailMessage message = new
MailMessage("ui *@hotmail.com", "ui*@hotmail.co m", "Subject",
>
"Body");
message.BodyEnc oding = System.Text.Enc oding.UTF8;
message.IsBodyH tml = true;
>
try
{
client.Send(mes sage);
Response.Write( "Email successfully sent.");
}
catch (Exception ex)
{
Response.Write( "Send Email Failed." + ex.ToString()); ;
}
===============

[=?Utf-8?B?Q2hlZg==?=]

Thank you very much and have a nice day!

"sloan" wrote:

>
I have no idea.

Experimentation showed that for 1.1 .. one of those ports worked.
and for 2.0, only the other one worked.
????

Huh? I'm with you, but I have no idea.


"Chef" <Ch**@discussio ns.microsoft.co mwrote in message
news:21******** *************** ***********@mic rosoft.com...

If I use gmail as smtp server, what the different between port 587 and

port

465 is?

I just check gmail online help, it recommend that we use port 465. Why?

Waht

is the reason you used port 587?

Thanks in advance!

"sloan" wrote:

>
I have downloadable examples here:
>
2/8/2006
Smarter Email/Smtp setup with DotNet Configuration Sections (1.1 and

2.0)

http://sholliday.spaces.live.com/blog/
>
>
"Chef" <Ch**@discussio ns.microsoft.co mwrote in message
news:7A******** *************** ***********@mic rosoft.com...
I can use outlook2003 to send email,but I cann't use this code below

to

send
email.
Please help me to test this code and instruct me how to solve this

problem

in detail.



software environment: VS2005 + XP.-- I have disabled firewall
hardware enviornmnet:tel com's modem connects hub,hub connects two
computers.?-- I also tried to connect computer to modem directly,but I

can

surf internet, not send email with code.

=============== ==============
System.Net.Mail .SmtpClient client = new SmtpClient();
client.Host = "smtp.gmail.com ";
client.Port = 465;
client.UseDefau ltCredentials = false;
client.Credenti als = new System.Net.Netw orkCredential(" uid",
"pwd");
//I also try to use full email address to replace uid. It didn't work.
client.Delivery Method = SmtpDeliveryMet hod.Network;

System.Net.Mail .MailMessage message = new
MailMessage("ui *@hotmail.com", "ui*@hotmail.co m", "Subject",

"Body");
message.BodyEnc oding = System.Text.Enc oding.UTF8;
message.IsBodyH tml = true;

try
{
client.Send(mes sage);
Response.Write( "Email successfully sent.");
}
catch (Exception ex)
{
Response.Write( "Send Email Failed." + ex.ToString()); ;
}
===============
>
>
>

[Juan T. Llibre]

re:
!Experimentatio n showed that for 1.1 .. one of those ports worked.
!and for 2.0, only the other one worked.

Check for code differences.

The port used depends on your ISP's ( Gmail, in this case ) server's settings,
and not on any code you write. The port is determined by your ISP, not by your code.

Juan T. Llibre, asp.net MVP
asp.net faq : http://asp.net.do/faq/
foros de asp.net, en español : http://asp.net.do/foros/
=============== =============== =====
"sloan" <sl***@ipass.ne twrote in message news:uT******** ******@TK2MSFTN GP03.phx.gbl...

>
I have no idea.

Experimentation showed that for 1.1 .. one of those ports worked.
and for 2.0, only the other one worked.
????

Huh? I'm with you, but I have no idea.


"Chef" <Ch**@discussio ns.microsoft.co mwrote in message
news:21******** *************** ***********@mic rosoft.com...

>If I use gmail as smtp server, what the different between port 587 and

port

>465 is?

I just check gmail online help, it recommend that we use port 465. Why?

Waht

>is the reason you used port 587?

Thanks in advance!

"sloan" wrote:

>
I have downloadable examples here:

2/8/2006
Smarter Email/Smtp setup with DotNet Configuration Sections (1.1 and

2.0)

http://sholliday.spaces.live.com/blog/
"Chef" <Ch**@discussio ns.microsoft.co mwrote in message
news:7A******** *************** ***********@mic rosoft.com...
I can use outlook2003 to send email,but I cann't use this code below

to

send
email.
Please help me to test this code and instruct me how to solve this

problem

in detail.

software environment: VS2005 + XP.-- I have disabled firewall
hardware enviornmnet:tel com's modem connects hub,hub connects two
computers.?-- I also tried to connect computer to modem directly,but I

can

surf internet, not send email with code.

=============== ==============
System.Net.Mail .SmtpClient client = new SmtpClient();
client.Host = "smtp.gmail.com ";
client.Port = 465;
client.UseDefau ltCredentials = false;
client.Credenti als = new System.Net.Netw orkCredential(" uid",
"pwd");
//I also try to use full email address to replace uid. It didn't work.
client.Delivery Method = SmtpDeliveryMet hod.Network;

System.Net.Mail .MailMessage message = new
MailMessage("ui *@hotmail.com", "ui*@hotmail.co m", "Subject",

"Body");
message.BodyEnc oding = System.Text.Enc oding.UTF8;
message.IsBodyH tml = true;

try
{
client.Send(mes sage);
Response.Write( "Email successfully sent.");
}
catch (Exception ex)
{
Response.Write( "Send Email Failed." + ex.ToString()); ;
}
===============

[sloan]

Juan
I agree with you.. except for the gmail smtp server.

1.1 framework likes port 465
2.0 Framework, my tests show that gmail likes port 587

I can't explain only, I can only say that was how it played out.

"Juan T. Llibre" <no***********@ nowhere.comwrot e in message
news:%2******** ********@TK2MSF TNGP04.phx.gbl. ..

re:
!Experimentatio n showed that for 1.1 .. one of those ports worked.
!and for 2.0, only the other one worked.

Check for code differences.

The port used depends on your ISP's ( Gmail, in this case ) server's

settings,

and not on any code you write. The port is determined by your ISP, not by

your code.

>
Juan T. Llibre, asp.net MVP
asp.net faq : http://asp.net.do/faq/
foros de asp.net, en español : http://asp.net.do/foros/
=============== =============== =====
"sloan" <sl***@ipass.ne twrote in message

news:uT******** ******@TK2MSFTN GP03.phx.gbl...

I have no idea.

Experimentation showed that for 1.1 .. one of those ports worked.
and for 2.0, only the other one worked.
????

Huh? I'm with you, but I have no idea.


"Chef" <Ch**@discussio ns.microsoft.co mwrote in message
news:21******** *************** ***********@mic rosoft.com...

If I use gmail as smtp server, what the different between port 587 and

port

465 is?

I just check gmail online help, it recommend that we use port 465. Why?

Waht

is the reason you used port 587?

Thanks in advance!

"sloan" wrote:


I have downloadable examples here:

2/8/2006
Smarter Email/Smtp setup with DotNet Configuration Sections (1.1 and

2.0)

http://sholliday.spaces.live.com/blog/
"Chef" <Ch**@discussio ns.microsoft.co mwrote in message
news:7A******** *************** ***********@mic rosoft.com...
I can use outlook2003 to send email,but I cann't use this code

below

to

send
email.
Please help me to test this code and instruct me how to solve this

problem

in detail.
>
>
>
software environment: VS2005 + XP.-- I have disabled firewall
hardware enviornmnet:tel com's modem connects hub,hub connects two
computers.?-- I also tried to connect computer to modem

directly,but I

can

surf internet, not send email with code.
>
=============== ==============
System.Net.Mail .SmtpClient client = new SmtpClient();
client.Host = "smtp.gmail.com ";
client.Port = 465;
client.UseDefau ltCredentials = false;
client.Credenti als = new

System.Net.Netw orkCredential(" uid",

"pwd");
//I also try to use full email address to replace uid. It didn't

work.

client.Delivery Method = SmtpDeliveryMet hod.Network;
>
System.Net.Mail .MailMessage message = new
MailMessage("ui *@hotmail.com", "ui*@hotmail.co m", "Subject",
>
"Body");
message.BodyEnc oding = System.Text.Enc oding.UTF8;
message.IsBodyH tml = true;
>
try
{
client.Send(mes sage);
Response.Write( "Email successfully sent.");
}
catch (Exception ex)
{
Response.Write( "Send Email Failed." + ex.ToString()); ;
}
===============

[Juan T. Llibre]

587 is the assigned SMTP port for applications which support TLS.
465 is the assigned SMTP port for applications which support SSL.

The Transport Layer Security (TLS) 1.0 protocol is disabled in the .NET Framework 1.1.
By default, only the Secure Sockets Layer (SSL) 3.0 protocol is enabled in .Net 1.1.

That means that, if you use the .Net Framework 1.1 to send mail, you *must* use port 465.

By default, TLS 1.0 and SSL 3.0 are *both* enabled in the Microsoft .NET Framework 2.0.

That means that, if you use the .Net Framework 2.0 to send mail,
you can use port 465 *or* you can use port 587, depending on the security protocol you enable.

The port you need to use *really* depends on which security layer your application uses.

re:

I can't explain only, I can only say that was how it played out.

The above is the technical explanation. :-)

Juan T. Llibre, asp.net MVP
asp.net faq : http://asp.net.do/faq/
foros de asp.net, en español : http://asp.net.do/foros/
=============== =============== =====
"sloan" <sl***@ipass.ne twrote in message news:%2******** ********@TK2MSF TNGP03.phx.gbl. ..

Juan

I agree with you.. except for the gmail smtp server.

1.1 framework likes port 465
2.0 Framework, my tests show that gmail likes port 587

I can't explain only, I can only say that was how it played out.

"Juan T. Llibre" <no***********@ nowhere.comwrot e in message
news:%2******** ********@TK2MSF TNGP04.phx.gbl. ..

>re:
!Experimentati on showed that for 1.1 .. one of those ports worked.
!and for 2.0, only the other one worked.

Check for code differences.

The port used depends on your ISP's ( Gmail, in this case ) server's

settings,

>and not on any code you write. The port is determined by your ISP, not by

your code.

>>
Juan T. Llibre, asp.net MVP
asp.net faq : http://asp.net.do/faq/
foros de asp.net, en español : http://asp.net.do/foros/
============== =============== ======
"sloan" <sl***@ipass.ne twrote in message

news:uT******** ******@TK2MSFTN GP03.phx.gbl...

>
I have no idea.

Experimentation showed that for 1.1 .. one of those ports worked.
and for 2.0, only the other one worked.
????

Huh? I'm with you, but I have no idea.


"Chef" <Ch**@discussio ns.microsoft.co mwrote in message
news:21******** *************** ***********@mic rosoft.com...
If I use gmail as smtp server, what the different between port 587 and
port
465 is?

I just check gmail online help, it recommend that we use port 465. Why?
Waht
is the reason you used port 587?

Thanks in advance!

"sloan" wrote:
I have downloadable examples here:

2/8/2006
Smarter Email/Smtp setup with DotNet Configuration Sections (1.1 and
2.0)
http://sholliday.spaces.live.com/blog/
"Chef" <Ch**@discussio ns.microsoft.co mwrote in message
news:7A******** *************** ***********@mic rosoft.com...
I can use outlook2003 to send email,but I cann't use this code

below

to
send
email.
Please help me to test this code and instruct me how to solve this
problem
in detail.

software environment: VS2005 + XP.-- I have disabled firewall
hardware enviornmnet:tel com's modem connects hub,hub connects two
computers.?-- I also tried to connect computer to modem

directly,but I

can
surf internet, not send email with code.

=============== ==============
System.Net.Mail .SmtpClient client = new SmtpClient();
client.Host = "smtp.gmail.com ";
client.Port = 465;
client.UseDefau ltCredentials = false;
client.Credenti als = new

System.Net.Netw orkCredential(" uid",

"pwd");
//I also try to use full email address to replace uid. It didn't

work.

client.Delivery Method = SmtpDeliveryMet hod.Network;

System.Net.Mail .MailMessage message = new
MailMessage("ui *@hotmail.com", "ui*@hotmail.co m", "Subject",

"Body");
message.BodyEnc oding = System.Text.Enc oding.UTF8;
message.IsBodyH tml = true;

try
{
client.Send(mes sage);
Response.Write( "Email successfully sent.");
}
catch (Exception ex)
{
Response.Write( "Send Email Failed." + ex.ToString()); ;
}
===============

[sloan]

Aha,

Thanks for the explanation.


"Juan T. Llibre" <no***********@ nowhere.comwrot e in message
news:%2******** *******@TK2MSFT NGP04.phx.gbl.. .

587 is the assigned SMTP port for applications which support TLS.
465 is the assigned SMTP port for applications which support SSL.

The Transport Layer Security (TLS) 1.0 protocol is disabled in the .NET

Framework 1.1.

By default, only the Secure Sockets Layer (SSL) 3.0 protocol is enabled in

..Net 1.1.

>
That means that, if you use the .Net Framework 1.1 to send mail, you

*must* use port 465.

>
By default, TLS 1.0 and SSL 3.0 are *both* enabled in the Microsoft .NET

Framework 2.0.

>
That means that, if you use the .Net Framework 2.0 to send mail,
you can use port 465 *or* you can use port 587, depending on the security

protocol you enable.

>
The port you need to use *really* depends on which security layer your

application uses.

>
re:

I can't explain only, I can only say that was how it played out.

The above is the technical explanation. :-)

Juan T. Llibre, asp.net MVP
asp.net faq : http://asp.net.do/faq/
foros de asp.net, en español : http://asp.net.do/foros/
=============== =============== =====
"sloan" <sl***@ipass.ne twrote in message

news:%2******** ********@TK2MSF TNGP03.phx.gbl. ..

Juan

I agree with you.. except for the gmail smtp server.

1.1 framework likes port 465
2.0 Framework, my tests show that gmail likes port 587

I can't explain only, I can only say that was how it played out.

"Juan T. Llibre" <no***********@ nowhere.comwrot e in message
news:%2******** ********@TK2MSF TNGP04.phx.gbl. ..

re:
!Experimentatio n showed that for 1.1 .. one of those ports worked.
!and for 2.0, only the other one worked.

Check for code differences.

The port used depends on your ISP's ( Gmail, in this case ) server's

settings,

and not on any code you write. The port is determined by your ISP, not

by

your code.

>
Juan T. Llibre, asp.net MVP
asp.net faq : http://asp.net.do/faq/
foros de asp.net, en español : http://asp.net.do/foros/
=============== =============== =====
"sloan" <sl***@ipass.ne twrote in message

news:uT******** ******@TK2MSFTN GP03.phx.gbl...

I have no idea.

Experimentation showed that for 1.1 .. one of those ports worked.
and for 2.0, only the other one worked.
????

Huh? I'm with you, but I have no idea.


"Chef" <Ch**@discussio ns.microsoft.co mwrote in message
news:21******** *************** ***********@mic rosoft.com...
If I use gmail as smtp server, what the different between port 587

and

port
465 is?

I just check gmail online help, it recommend that we use port 465.

Why?

Waht
is the reason you used port 587?

Thanks in advance!

"sloan" wrote:


I have downloadable examples here:

2/8/2006
Smarter Email/Smtp setup with DotNet Configuration Sections (1.1

and

2.0)
http://sholliday.spaces.live.com/blog/
"Chef" <Ch**@discussio ns.microsoft.co mwrote in message
news:7A******** *************** ***********@mic rosoft.com...
I can use outlook2003 to send email,but I cann't use this code

below

to
send
email.
Please help me to test this code and instruct me how to solve

this

problem
in detail.
>
>
>
software environment: VS2005 + XP.-- I have disabled firewall
hardware enviornmnet:tel com's modem connects hub,hub connects

two

computers.?-- I also tried to connect computer to modem

directly,but I

can
surf internet, not send email with code.
>
=============== ==============
System.Net.Mail .SmtpClient client = new SmtpClient();
client.Host = "smtp.gmail.com ";
client.Port = 465;
client.UseDefau ltCredentials = false;
client.Credenti als = new

System.Net.Netw orkCredential(" uid",

"pwd");
//I also try to use full email address to replace uid. It didn't

work.

client.Delivery Method = SmtpDeliveryMet hod.Network;
>
System.Net.Mail .MailMessage message = new
MailMessage("ui *@hotmail.com", "ui*@hotmail.co m", "Subject",
>
"Body");
message.BodyEnc oding = System.Text.Enc oding.UTF8;
message.IsBodyH tml = true;
>
try
{
client.Send(mes sage);
Response.Write( "Email successfully sent.");
}
catch (Exception ex)
{
Response.Write( "Send Email Failed." +

ex.ToString()); ;

}
===============