Пример #1
0
        public static async Task <SmtpClient> CreateConnectedSmtpClientAsync([NotNull] this RelayRule forwardRule, CancellationToken token)
        {
            if (forwardRule == null)
            {
                throw new ArgumentNullException(nameof(forwardRule));
            }

            var client = new SmtpClient();

            await client.ConnectAsync(
                forwardRule.SmtpServer,
                forwardRule.SmtpPort,
                forwardRule.SmtpUseSSL?SecureSocketOptions.Auto : SecureSocketOptions.None,
                token);

            // Note: since we don't have an OAuth2 token, disable
            // the XOAUTH2 authentication mechanism.
            client.AuthenticationMechanisms.Remove("XOAUTH2");

            if (!string.IsNullOrWhiteSpace(forwardRule.SmtpPassword) &&
                !string.IsNullOrWhiteSpace(forwardRule.SmtpUsername))
            {
                // Note: only needed if the SMTP server requires authentication
                await client.AuthenticateAsync(forwardRule.SmtpUsername, forwardRule.SmtpPassword, token);
            }

            return(client);
        }
Пример #2
0
        public static void PopulateServerFromUri([NotNull] this RelayRule rule, string smtpServer)
        {
            if (rule == null)
            {
                throw new ArgumentNullException(nameof(rule));
            }

            var uri = new Uri("smtp://" + smtpServer);

            rule.SmtpServer = uri.DnsSafeHost;
            rule.SmtpPort   = uri.IsDefaultPort ? 25 : uri.Port;
        }