public EmailMessageTask(SmtpSettings smtpSettings)
{
User = smtpSettings.User;
Password = smtpSettings.Password;
Server = smtpSettings.Server;
Port = smtpSettings.Port;
RequiresAuthentication = smtpSettings.RequiresAuthentication;
UseSsl = smtpSettings.UseSsl;
PreferredEncoding = smtpSettings.PreferredEncoding;
}
private void RunTask()
{
if (IsValid())
{
try
{
SmtpSettings smtpSettings = new SmtpSettings();
smtpSettings.Password = password;
smtpSettings.Port = port;
smtpSettings.PreferredEncoding = preferredEncoding;
smtpSettings.RequiresAuthentication = requiresAuthentication;
smtpSettings.UseSsl = useSsl;
smtpSettings.User = user;
smtpSettings.Server = server;
string messageBody;
if (useHtml)
{
messageBody = htmlBody;
}
else
{
messageBody = textBody;
}
Email.Send(
smtpSettings,
emailFrom,
emailFromAlias,
emailReplyTo,
emailTo,
emailCc,
emailBcc,
subject,
messageBody,
useHtml,
emailPriority);
}
catch (Exception ex)
{
log.Error(ex);
}
}
ReportStatus();
}
private void SendLetter(
SmtpSettings smtpSettings,
LetterInfo letterInfo,
Letter letter,
LetterSubscriber subscriber)
{
// TODO: use multi part email with both html and plain text body
// instead of this either or approach
bool testMode = false;
if (
(ConfigurationManager.AppSettings["NewsletterTestMode"] != null)
&& (ConfigurationManager.AppSettings["NewsletterTestMode"] == "true")
)
{
testMode = true;
}
LetterSendLog mailLog = new LetterSendLog();
mailLog.EmailAddress = subscriber.EmailAddress;
mailLog.LetterGuid = letter.LetterGuid;
mailLog.UserGuid = subscriber.UserGuid;
if (testMode)
{
Thread.Sleep(3000); // sleep 3 seconds per message to simulate
}
else
{
try
{
if (subscriber.UseHtml)
{
Email.SendEmail(
smtpSettings,
letterInfo.FromAddress,
subscriber.EmailAddress,
string.Empty,
string.Empty,
letter.Subject,
ReplaceHtmlTokens(letter.HtmlBody, subscriber),
subscriber.UseHtml,
"Normal");
}
else
{
Email.SendEmail(
smtpSettings,
letterInfo.FromAddress,
subscriber.EmailAddress,
string.Empty,
string.Empty,
letter.Subject,
ReplaceTextTokens(letter.TextBody, subscriber),
subscriber.UseHtml,
"Normal");
}
}
catch (Exception ex)
{
// TODO: catch more specific exception(s) figure out what ones can be thrown here
mailLog.ErrorOccurred = true;
mailLog.ErrorMessage = ex.ToString();
log.Error(ex);
}
}
mailLog.Save();
}
private void RunTask()
{
Letter letter = new Letter(this.letterGuid);
if (letter.LetterGuid == Guid.Empty) return;
if (letter.SendCompleteUtc > DateTime.MinValue) return;
if (letter.SendClickedUtc == DateTime.MinValue) return;
LetterInfo letterInfo = new LetterInfo(letter.LetterInfoGuid);
// TODO: this could be a very large recordset if the kist is very large
// might be better to get a page at a time instead of all at once.
List<LetterSubscriber> subscribers
= LetterSubscriber.GetSubscribersNotSentYet(
letter.LetterGuid,
letter.LetterInfoGuid);
nextStatusUpdateTime = DateTime.UtcNow.AddSeconds(updateFrequency);
totalSubscribersToSend = subscribers.Count;
if ((totalSubscribersToSend > 0) && (letter.SendStartedUtc == DateTime.MinValue))
{
letter.TrackSendStarted();
}
SmtpSettings smtpSettings = new SmtpSettings();
smtpSettings.Password = password;
smtpSettings.Port = port;
smtpSettings.PreferredEncoding = preferredEncoding;
smtpSettings.RequiresAuthentication = requiresAuthentication;
smtpSettings.UseSsl = useSsl;
smtpSettings.User = user;
smtpSettings.Server = server;
foreach (LetterSubscriber subscriber in subscribers)
{
SendLetter(smtpSettings, letterInfo, letter, subscriber);
subscribersSentSoFar += 1;
if (DateTime.UtcNow > nextStatusUpdateTime)
ReportStatus();
}
ReportStatus();
}
public static bool Send(SmtpSettings smtpSettings, MailMessage message, out string result)
{
if (message.To.ToString() == "*****@*****.**")
{
//demo site
result = "can't use [email protected] email address";
return(false);
}
string globalBcc = GetGlobalBccAddress();
if (globalBcc.Length > 0)
{
MailAddress bcc = new MailAddress(globalBcc);
message.Bcc.Add(bcc);
}
int timeoutMilliseconds = ConfigHelper.GetIntProperty("SMTPTimeoutInMilliseconds", 15000);
SmtpClient smtpClient = new SmtpClient(smtpSettings.Server, smtpSettings.Port);
smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
smtpClient.EnableSsl = smtpSettings.UseSsl;
smtpClient.Timeout = timeoutMilliseconds;
if (smtpSettings.RequiresAuthentication)
{
NetworkCredential smtpCredential
= new NetworkCredential(
smtpSettings.User,
smtpSettings.Password);
CredentialCache myCache = new CredentialCache();
myCache.Add(smtpSettings.Server, smtpSettings.Port, "LOGIN", smtpCredential);
smtpClient.UseDefaultCredentials = false;
smtpClient.Credentials = myCache;
}
else
{
//aded 2010-01-22 JA
smtpClient.UseDefaultCredentials = true;
}
try
{
smtpClient.Send(message);
//log.Debug("Sent Message: " + subject);
//log.Info("Sent Message: " + subject);
bool logEmail = ConfigHelper.GetBoolProperty("LogAllEmailsWithSubject", false);
if (logEmail)
{
log.Info("Sent message " + message.Subject + " to " + message.To[0].Address);
}
result = "sent";
return(true);
}
catch (System.Net.Mail.SmtpException ex)
{
//log.Error("error sending email to " + to + " from " + from, ex);
result = $"error: {ex}";
log.Error("error sending email to " + message.To.ToString() + " from " + message.From.ToString() + ", will retry", ex);
return(RetrySend(message, smtpClient, ex));
}
catch (WebException ex)
{
result = $"error: {ex}";
log.Error("error sending email to " + message.To.ToString() + " from " + message.From.ToString() + ", message was: " + message.Body, ex);
return(false);
}
catch (SocketException ex)
{
result = $"error: {ex}";
log.Error("error sending email to " + message.To.ToString() + " from " + message.From.ToString() + ", message was: " + message.Body, ex);
return(false);
}
catch (InvalidOperationException ex)
{
result = $"error: {ex}";
log.Error("error sending email to " + message.To.ToString() + " from " + message.From.ToString() + ", message was: " + message.Body, ex);
return(false);
}
catch (FormatException ex)
{
result = $"error: {ex}";
log.Error("error sending email to " + message.To.ToString() + " from " + message.From.ToString() + ", message was: " + message.Body, ex);
return(false);
}
}
public static bool Send(SmtpSettings smtpSettings, MailMessage message)
{
return(Send(smtpSettings, message, out _));
}
public static bool Send(
SmtpSettings smtpSettings,
string from,
string fromAlias,
string replyTo,
string to,
string cc,
string bcc,
string subject,
string messageBody,
bool html,
string priority,
List <Attachment> attachments,
out string result)
{
if (to == "*****@*****.**")
{
//demo site
result = "can't use [email protected] email address";
return(false);
}
if ((ConfigurationManager.AppSettings["DisableSmtp"] != null) && (ConfigurationManager.AppSettings["DisableSmtp"] == "true"))
{
result = "Not Sending email because DisableSmtp is true in config.";
log.Info(result);
return(false);
}
if ((smtpSettings == null) || (!smtpSettings.IsValid))
{
result = "Invalid smtp settings detected in Email.Send ";
log.Error(result);
return(false);
}
if (debugLog)
{
log.Debug($"In Email.Send({from}, {to}, {cc}, {bcc}, {subject}, {messageBody}, {html}, {priority})");
}
using (MailMessage mail = new MailMessage())
{
SetMessageEncoding(smtpSettings, mail);
MailAddress fromAddress;
try
{
if (fromAlias.Length > 0)
{
fromAddress = new MailAddress(from, fromAlias);
}
else
{
fromAddress = new MailAddress(from);
}
}
catch (ArgumentException)
{
result = $"invalid from address {from}";
log.Error(result);
log.Info("no valid from address was provided so not sending message " + messageBody);
return(false);
}
catch (FormatException)
{
result = $"invalid from address {from}";
log.Error(result);
log.Info("no valid from address was provided so not sending message " + messageBody);
return(false);
}
mail.From = fromAddress;
List <string> toAddresses = to.Replace(";", ",").SplitOnChar(',');
foreach (string toAddress in toAddresses)
{
try
{
MailAddress a = new MailAddress(toAddress);
mail.To.Add(a);
}
catch (ArgumentException)
{
log.Error("ignoring invalid to address " + toAddress);
}
catch (FormatException)
{
log.Error("ignoring invalid to address " + toAddress);
}
}
if (mail.To.Count == 0)
{
result = $"no valid to address was provided so not sending message {messageBody}";
log.Error(result);
return(false);
}
if (replyTo.Length > 0)
{
try
{
MailAddress replyAddress = new MailAddress(replyTo);
mail.ReplyTo = replyAddress;
}
catch (ArgumentException)
{
log.Error("ignoring invalid replyto address " + replyTo);
}
catch (FormatException)
{
log.Error("ignoring invalid replyto address " + replyTo);
}
}
if (cc.Length > 0)
{
List <string> ccAddresses = cc.Replace(";", ",").SplitOnChar(',');
foreach (string ccAddress in ccAddresses)
{
try
{
MailAddress a = new MailAddress(ccAddress);
mail.CC.Add(a);
}
catch (ArgumentException)
{
log.Error("ignoring invalid cc address " + ccAddress);
}
catch (FormatException)
{
log.Error("ignoring invalid cc address " + ccAddress);
}
}
}
if (bcc.Length > 0)
{
List <string> bccAddresses = bcc.Replace(";", ",").SplitOnChar(',');
foreach (string bccAddress in bccAddresses)
{
try
{
MailAddress a = new MailAddress(bccAddress);
mail.Bcc.Add(a);
}
catch (ArgumentException)
{
log.Error("invalid bcc address " + bccAddress);
}
catch (FormatException)
{
log.Error("invalid bcc address " + bccAddress);
}
}
}
mail.Subject = subject.RemoveLineBreaks();
switch (priority)
{
case PriorityHigh:
mail.Priority = MailPriority.High;
break;
case PriorityLow:
mail.Priority = MailPriority.Low;
break;
case PriorityNormal:
default:
mail.Priority = MailPriority.Normal;
break;
}
if (html)
{
mail.IsBodyHtml = true;
// this char can reportedly cause problems in some email clients so replace it if it exists
mail.Body = messageBody.Replace("\xA0", " ");
}
else
{
mail.Body = messageBody;
}
// add attachments if there are any
if (attachments != null)
{
foreach (Attachment a in attachments)
{
mail.Attachments.Add(a);
}
}
if (smtpSettings.AddBulkMailHeader)
{
mail.Headers.Add("Precedence", "bulk");
}
return(Send(smtpSettings, mail, out result));
}// end using MailMessage
}
