public async Task SendEmailAsync(
SmtpOptions smtpOptions,
string from,
string to,
string subject,
string body,
bool htmlBody = true,
string fromAlias = null,
string toAlias = null,
string replyTo = null)
{
ValidateEmail(from, to, subject);
MimeMessage emailMessage = BuildMimeMessage(from, fromAlias, to, toAlias, subject, body, htmlBody, replyTo);
await SendEmailAsync(emailMessage, smtpOptions);
}
private async Task SendEmailAsync(MimeMessage emailMessage, SmtpOptions smtpOption)
{
using (var client = new SmtpClient())
{
await client.ConnectAsync(smtpOption.Server, smtpOption.Port, smtpOption.UseSsl)
.ConfigureAwait(false);
// Note: since we don't have an OAuth2 token, disable the XOAUTH2 authentication mechanism.
client.AuthenticationMechanisms.Remove("XOAUTH2");
// Note: only needed if the SMTP server requires authentication.
if (smtpOption.RequiresAuthentication)
{
await client.AuthenticateAsync(smtpOption.User, smtpOption.Password)
.ConfigureAwait(false);
}
await client.SendAsync(emailMessage).ConfigureAwait(false);
await client.DisconnectAsync(true).ConfigureAwait(false);
}
}