Use SMTP / Email Client behind proxy in GO
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-2
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I am using "net/mail" and "net/smtp" to create an email client in Go, but it fails when it's behind the proxy.
I had the same issue for http client but it got resolved using &http.TransportProxy: http.ProxyFromEnvironment couldn't find a similar fix for SMTP
The below code works on my machine, which is behind the co-corporate proxy. but if I run the same code on a VM which is not behind any proxy, It works.
package main
import (
"fmt"
"net/smtp"
)
func main()
fmt.Println("email sending")
// Set up authentication information.
auth := smtp.PlainAuth(
"",
"ma****017@gmail.com",
"A***a",
"smtp.gmail.com",
)
// Connect to the server, authenticate, set the sender and recipient,
// and send the email all in one step.
err := smtp.SendMail(
"smtp.gmail.com:587",
auth,
"ma***17@gmail.com",
string"chi****11@gmail.com",
byte("This is the email body."),
)
if err != nil
panic(err)
fmt.Println("email sent")
go proxy smtpclient asked Nov 10 at 7:14
Chinmay Samant
80110
|
show 3 more comments
up vote
-2
down vote
favorite
I am using "net/mail" and "net/smtp" to create an email client in Go, but it fails when it's behind the proxy.
I had the same issue for http client but it got resolved using &http.TransportProxy: http.ProxyFromEnvironment couldn't find a similar fix for SMTP
The below code works on my machine, which is behind the co-corporate proxy. but if I run the same code on a VM which is not behind any proxy, It works.
package main
import (
"fmt"
"net/smtp"
)
func main()
fmt.Println("email sending")
// Set up authentication information.
auth := smtp.PlainAuth(
"",
"ma****017@gmail.com",
"A***a",
"smtp.gmail.com",
)
// Connect to the server, authenticate, set the sender and recipient,
// and send the email all in one step.
err := smtp.SendMail(
"smtp.gmail.com:587",
auth,
"ma***17@gmail.com",
string"chi****11@gmail.com",
byte("This is the email body."),
)
if err != nil
panic(err)
fmt.Println("email sent")
asked Nov 10 at 7:14
Chinmay Samant
80110
2
There's no such thing as an SMTP proxy, per se, except to the extent that every SMTP server can serve as a proxy. Which exact "system proxy settings" were you thinking of using?
– Flimzy
Nov 10 at 10:08
See github.com/Supme/directEmail/blob/master/send.go for some code that diverts SMTP through a socks proxy
– Vorsprung
Nov 10 at 11:31
i am not trying to make a proxy server. the vm on where my code runs is behind a proxy, so i need a way by which my email client will make calls using proxy
– Chinmay Samant
Nov 10 at 12:44
@ChinmaySamant: This isn't a coding problem. You need to allow access to an SMTP server somehow, from within your VM. A common way to do this is with a 'smarthost' (the SMTP term most similar to a 'proxy'), but this is entirely a networking/server issue, nothing to do with coding.
– Flimzy
Nov 10 at 15:34
i fail to understand how it's not a coding problem.!! for http client in GO to work behind proxy i had to use&http.TransportProxy: http.ProxyFromEnvironmentso in similar way, i am asking what should i use for smtp clinet in GO to make it work behind proxy?
– Chinmay Samant
Nov 11 at 5:45
|
show 3 more comments
up vote
-2
down vote
favorite
up vote
-2
down vote
favorite
I am using "net/mail" and "net/smtp" to create an email client in Go, but it fails when it's behind the proxy.
I had the same issue for http client but it got resolved using &http.TransportProxy: http.ProxyFromEnvironment couldn't find a similar fix for SMTP
The below code works on my machine, which is behind the co-corporate proxy. but if I run the same code on a VM which is not behind any proxy, It works.
package main
import (
"fmt"
"net/smtp"
)
func main()
fmt.Println("email sending")
// Set up authentication information.
auth := smtp.PlainAuth(
"",
"ma****017@gmail.com",
"A***a",
"smtp.gmail.com",
)
// Connect to the server, authenticate, set the sender and recipient,
// and send the email all in one step.
err := smtp.SendMail(
"smtp.gmail.com:587",
auth,
"ma***17@gmail.com",
string"chi****11@gmail.com",
byte("This is the email body."),
)
if err != nil
panic(err)
fmt.Println("email sent")
asked Nov 10 at 7:14
Chinmay Samant
80110
I am using "net/mail" and "net/smtp" to create an email client in Go, but it fails when it's behind the proxy.
I had the same issue for http client but it got resolved using &http.TransportProxy: http.ProxyFromEnvironment couldn't find a similar fix for SMTP
The below code works on my machine, which is behind the co-corporate proxy. but if I run the same code on a VM which is not behind any proxy, It works.
package main
import (
"fmt"
"net/smtp"
)
func main()
fmt.Println("email sending")
// Set up authentication information.
auth := smtp.PlainAuth(
"",
"ma****017@gmail.com",
"A***a",
"smtp.gmail.com",
)
// Connect to the server, authenticate, set the sender and recipient,
// and send the email all in one step.
err := smtp.SendMail(
"smtp.gmail.com:587",
auth,
"ma***17@gmail.com",
string"chi****11@gmail.com",
byte("This is the email body."),
)
if err != nil
panic(err)
fmt.Println("email sent")
asked Nov 10 at 7:14
Chinmay Samant
80110
asked Nov 10 at 7:14
Chinmay Samant
80110
edited Nov 14 at 6:43
asked Nov 10 at 7:14
Chinmay Samant
80110
asked Nov 10 at 7:14
Chinmay Samant
80110
asked Nov 10 at 7:14
Chinmay Samant
80110
80110
2
There's no such thing as an SMTP proxy, per se, except to the extent that every SMTP server can serve as a proxy. Which exact "system proxy settings" were you thinking of using?
– Flimzy
Nov 10 at 10:08
See github.com/Supme/directEmail/blob/master/send.go for some code that diverts SMTP through a socks proxy
– Vorsprung
Nov 10 at 11:31
i am not trying to make a proxy server. the vm on where my code runs is behind a proxy, so i need a way by which my email client will make calls using proxy
– Chinmay Samant
Nov 10 at 12:44
@ChinmaySamant: This isn't a coding problem. You need to allow access to an SMTP server somehow, from within your VM. A common way to do this is with a 'smarthost' (the SMTP term most similar to a 'proxy'), but this is entirely a networking/server issue, nothing to do with coding.
– Flimzy
Nov 10 at 15:34
i fail to understand how it's not a coding problem.!! for http client in GO to work behind proxy i had to use&http.TransportProxy: http.ProxyFromEnvironmentso in similar way, i am asking what should i use for smtp clinet in GO to make it work behind proxy?
– Chinmay Samant
Nov 11 at 5:45
|
show 3 more comments
2
There's no such thing as an SMTP proxy, per se, except to the extent that every SMTP server can serve as a proxy. Which exact "system proxy settings" were you thinking of using?
– Flimzy
Nov 10 at 10:08
See github.com/Supme/directEmail/blob/master/send.go for some code that diverts SMTP through a socks proxy
– Vorsprung
Nov 10 at 11:31
i am not trying to make a proxy server. the vm on where my code runs is behind a proxy, so i need a way by which my email client will make calls using proxy
– Chinmay Samant
Nov 10 at 12:44
@ChinmaySamant: This isn't a coding problem. You need to allow access to an SMTP server somehow, from within your VM. A common way to do this is with a 'smarthost' (the SMTP term most similar to a 'proxy'), but this is entirely a networking/server issue, nothing to do with coding.
– Flimzy
Nov 10 at 15:34
i fail to understand how it's not a coding problem.!! for http client in GO to work behind proxy i had to use&http.TransportProxy: http.ProxyFromEnvironmentso in similar way, i am asking what should i use for smtp clinet in GO to make it work behind proxy?
– Chinmay Samant
Nov 11 at 5:45
2
2
There's no such thing as an SMTP proxy, per se, except to the extent that every SMTP server can serve as a proxy. Which exact "system proxy settings" were you thinking of using?
– Flimzy
Nov 10 at 10:08
There's no such thing as an SMTP proxy, per se, except to the extent that every SMTP server can serve as a proxy. Which exact "system proxy settings" were you thinking of using?
– Flimzy
Nov 10 at 10:08
See github.com/Supme/directEmail/blob/master/send.go for some code that diverts SMTP through a socks proxy
– Vorsprung
Nov 10 at 11:31
See github.com/Supme/directEmail/blob/master/send.go for some code that diverts SMTP through a socks proxy
– Vorsprung
Nov 10 at 11:31
i am not trying to make a proxy server. the vm on where my code runs is behind a proxy, so i need a way by which my email client will make calls using proxy
– Chinmay Samant
Nov 10 at 12:44
i am not trying to make a proxy server. the vm on where my code runs is behind a proxy, so i need a way by which my email client will make calls using proxy
– Chinmay Samant
Nov 10 at 12:44
@ChinmaySamant: This isn't a coding problem. You need to allow access to an SMTP server somehow, from within your VM. A common way to do this is with a 'smarthost' (the SMTP term most similar to a 'proxy'), but this is entirely a networking/server issue, nothing to do with coding.
– Flimzy
Nov 10 at 15:34
@ChinmaySamant: This isn't a coding problem. You need to allow access to an SMTP server somehow, from within your VM. A common way to do this is with a 'smarthost' (the SMTP term most similar to a 'proxy'), but this is entirely a networking/server issue, nothing to do with coding.
– Flimzy
Nov 10 at 15:34
i fail to understand how it's not a coding problem.!! for http client in GO to work behind proxy i had to use
&http.TransportProxy: http.ProxyFromEnvironment so in similar way, i am asking what should i use for smtp clinet in GO to make it work behind proxy?– Chinmay Samant
Nov 11 at 5:45
i fail to understand how it's not a coding problem.!! for http client in GO to work behind proxy i had to use
&http.TransportProxy: http.ProxyFromEnvironment so in similar way, i am asking what should i use for smtp clinet in GO to make it work behind proxy?– Chinmay Samant
Nov 11 at 5:45
|
show 3 more comments
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2
There's no such thing as an SMTP proxy, per se, except to the extent that every SMTP server can serve as a proxy. Which exact "system proxy settings" were you thinking of using?
– Flimzy
Nov 10 at 10:08
See github.com/Supme/directEmail/blob/master/send.go for some code that diverts SMTP through a socks proxy
– Vorsprung
Nov 10 at 11:31
i am not trying to make a proxy server. the vm on where my code runs is behind a proxy, so i need a way by which my email client will make calls using proxy
– Chinmay Samant
Nov 10 at 12:44
@ChinmaySamant: This isn't a coding problem. You need to allow access to an SMTP server somehow, from within your VM. A common way to do this is with a 'smarthost' (the SMTP term most similar to a 'proxy'), but this is entirely a networking/server issue, nothing to do with coding.
– Flimzy
Nov 10 at 15:34
i fail to understand how it's not a coding problem.!! for http client in GO to work behind proxy i had to use
&http.TransportProxy: http.ProxyFromEnvironmentso in similar way, i am asking what should i use for smtp clinet in GO to make it work behind proxy?– Chinmay Samant
Nov 11 at 5:45