net/smtp: timeout support similar to net.DialTimeout

[harlow]

Similar to the addition of DialTimeout to net package:
#240

go/src/pkg/net/dial.go

Line 78 in 964309e

func DialTimeout(net, addr string, timeout time.Duration) (Conn, error) {

Would be nice to add some symmetry with DialTimeout for smtp package:
https://github.com/golang/go/blob/master/src/net/smtp/smtp.go#L43-L45

[bradfitz]

Sorry, the SMTP package is frozen. Please fork it and add features on Github. We should have never included it in the standard library.

I'll keep this bug open to document that it's frozen though. We'll fix bugs but not add features.

[harlow]

OK sounds good - thanks for the quick reply. I worked around it by passing in the net client:

// Dial the tcp connection
conn, err := net.DialTimeout("tcp", addr, 10*time.Second)
if err != nil {
    return "", err
}

// Connect to the SMTP server
c, err := smtp.NewClient(conn, host)
if err != nil {
    return "", err
}
defer c.Quit()

[gopherbot]

CL https://golang.org/cl/25080 mentions this issue.