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Monorepo for Tangled
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859package email
import ( "fmt" "net" "net/mail" "strings"
"github.com/resend/resend-go/v2")
type Email struct { From string To string Subject string Text string Html string APIKey string}
func SendEmail(email Email) error { client := resend.NewClient(email.APIKey) _, err := client.Emails.Send(&resend.SendEmailRequest{ From: email.From, To: []string{email.To}, Subject: email.Subject, Text: email.Text, Html: email.Html, }) if err != nil { return fmt.Errorf("error sending email: %w", err) } return nil}
func IsValidEmail(email string) bool { // Reject whitespace (ParseAddress normalizes it away) if strings.ContainsAny(email, " \t\n\r") { return false }
// Use stdlib RFC 5322 parser addr, err := mail.ParseAddress(email) if err != nil { return false }
// Split email into local and domain parts parts := strings.Split(addr.Address, "@") domain := parts[1]
mx, err := net.LookupMX(domain) if err != nil || len(mx) == 0 { return false }
return true}