我正在構建一個應用程序，它需要在發送電子郵件時動態/編程式地瞭解並使用不同的SMTP設置。在web.config中設置多個SMTP設置？
我習慣使用system.net/mailSettings方法，但據我所知，它只允許一次使用SmtpClient（）使用的一個SMTP連接定義。
但是，我需要更多的類似connectionStrings的方法，我可以根據一個鍵/名稱來提取一組設置。
有什麼建議嗎？我打算跳過傳統的SmtpClient/mailSettings方法，我認爲必須...
我需要在web.config中有不同的smtp配置，具體取決於環境：dev，staging和production。
這裏是我最終使用：
在web.config中：
<configuration>
<configSections>
<sectionGroup name="mailSettings">
<section name="smtp_1" type="System.Net.Configuration.SmtpSection"/>
<section name="smtp_2" type="System.Net.Configuration.SmtpSection"/>
<section name="smtp_3" type="System.Net.Configuration.SmtpSection"/>
</sectionGroup>
</configSections>
<mailSettings>
<smtp_1 deliveryMethod="Network" from="[email protected]">
<network host="..." defaultCredentials="false"/>
</smtp_1>
<smtp_2 deliveryMethod="Network" from="[email protected]">
<network host="1..." defaultCredentials="false"/>
</smtp_2>
<smtp_3 deliveryMethod="Network" from="[email protected]">
<network host="..." defaultCredentials="false"/>
</smtp_3>
</mailSettings>
</configuration>
然後：
return (SmtpSection)ConfigurationManager.GetSection("mailSettings/smtp_1");
return (SmtpSection)ConfigurationManager.GetSection("mailSettings/smtp_2");
return (SmtpSection)ConfigurationManager.GetSection("mailSettings/smtp_3");
看起來您可以使用不同的SMTP字符串進行初始化。
SmtpClient client = new SmtpClient（server）;
http://msdn.microsoft.com/en-us/library/k0y6s613.aspx
我希望這是你在找什麼。
只要在準備發送郵件時傳遞相關的詳細信息，並將所有這些設置存儲在web.config的應用程序設置中即可。
例如，創建不同的AppSettings（如「EmailUsername1」等）在web.config中，你將能夠完全獨立地稱他們爲：
System.Net.Mail.MailMessage mail = null;
System.Net.Mail.SmtpClient smtp = null;
mail = new System.Net.Mail.MailMessage();
//set the addresses
mail.From = new System.Net.Mail.MailAddress(System.Configuration.ConfigurationManager.AppSettings["Email1"]);
mail.To.Add("[email protected]");
mail.Subject = "The secret to the universe";
mail.Body = "42";
//send the message
smtp = new System.Net.Mail.SmtpClient(System.Configuration.ConfigurationManager.AppSettings["YourSMTPServer"]);
//to authenticate, set the username and password properites on the SmtpClient
smtp.Credentials = new System.Net.NetworkCredential(System.Configuration.ConfigurationManager.AppSettings["EmailUsername1"], System.Configuration.ConfigurationManager.AppSettings["EmailPassword1"]);
smtp.UseDefaultCredentials = false;
smtp.Port = System.Configuration.ConfigurationManager.AppSettings["EmailSMTPPort"];
smtp.EnableSsl = false;
smtp.Send(mail);
我結束了我的構建自己的定製配置加載器在EmailService類中使用。配置數據可以像連接字符串一樣存儲在web.config中，並且可以動態地通過名稱來引用。
這可能會或可能不會幫助別人，但如果你有在這裏尋找多個smtp配置的Mandrill設置我最終創建了一個繼承自此人員代碼的SmtpClient類的類，這非常好：https://github.com/iurisilvio/mandrill-smtp.NET
/// <summary>
/// Overrides the default SMTP Client class to go ahead and default the host and port to Mandrills goodies.
/// </summary>
public class MandrillSmtpClient : SmtpClient
{
public MandrillSmtpClient(string smtpUsername, string apiKey, string host = "smtp.mandrillapp.com", int port = 587)
: base(host, port)
{
this.Credentials = new NetworkCredential(smtpUsername, apiKey);
this.EnableSsl = true;
}
}
下面是如何調用這個例子：
[Test]
public void SendMandrillTaggedEmail()
{
string SMTPUsername = _config("MandrillSMTP_Username");
string APIKey = _config("MandrillSMTP_Password");
using(var client = new MandrillSmtpClient(SMTPUsername, APIKey)) {
MandrillMailMessage message = new MandrillMailMessage()
{
From = new MailAddress(_config("FromEMail"))
};
string to = _config("ValidToEmail");
message.To.Add(to);
message.MandrillHeader.PreserveRecipients = false;
message.MandrillHeader.Tracks.Add(ETrack.opens);
message.MandrillHeader.Tracks.Add(ETrack.clicks_all);
message.MandrillHeader.Tags.Add("NewsLetterSignup");
message.MandrillHeader.Tags.Add("InTrial");
message.MandrillHeader.Tags.Add("FreeContest");
message.Subject = "Test message 3";
message.Body = "love, love, love";
client.Send(message);
}
}
SmtpSection smtpSection = (SmtpSection)ConfigurationManager.GetSection("mailSettings/smtp_1");
SmtpClient smtpClient = new SmtpClient(smtpSection.Network.Host, smtpSection.Network.Port);
smtpClient.Credentials = new NetworkCredential(smtpSection.Network.UserName, smtpSection.Network.Password);
我有同樣的需求和標記答案爲我工作。
我做的
網絡這些變化。配置：
<configSections>
<sectionGroup name="mailSettings2">
<section name="noreply" type="System.Net.Configuration.SmtpSection"/>
</sectionGroup>
<section name="othersection" type="SomeType" />
</configSections>
<mailSettings2>
<noreply deliveryMethod="Network" from="[email protected]"> // noreply, in my case - use your mail in the condition bellow
<network enableSsl="false" password="<YourPass>" host="<YourHost>" port="25" userName="<YourUser>" defaultCredentials="false" />
</noreply>
</mailSettings2>
... </configSections>
然後，我有一個發送郵件線程：
SomePage.cs
private bool SendMail(String From, String To, String Subject, String Html)
{
try
{
System.Net.Mail.SmtpClient SMTPSender = null;
if (From.Split('@')[0] == "noreply")
{
System.Net.Configuration.SmtpSection smtpSection = (SmtpSection)ConfigurationManager.GetSection("mailSettings2/noreply");
SMTPSender = new System.Net.Mail.SmtpClient(smtpSection.Network.Host, smtpSection.Network.Port);
SMTPSender.Credentials = new System.Net.NetworkCredential(smtpSection.Network.UserName, smtpSection.Network.Password);
System.Net.Mail.MailMessage Message = new System.Net.Mail.MailMessage();
Message.From = new System.Net.Mail.MailAddress(From);
Message.To.Add(To);
Message.Subject = Subject;
Message.Bcc.Add(Recipient);
Message.IsBodyHtml = true;
Message.Body = Html;
Message.BodyEncoding = Encoding.GetEncoding("ISO-8859-1");
Message.SubjectEncoding = Encoding.GetEncoding("ISO-8859-1");
SMTPSender.Send(Message);
}
else
{
SMTPSender = new System.Net.Mail.SmtpClient();
System.Net.Mail.MailMessage Message = new System.Net.Mail.MailMessage();
Message.From = new System.Net.Mail.MailAddress(From);
SMTPSender.EnableSsl = SMTPSender.Port == <Port1> || SMTPSender.Port == <Port2>;
Message.To.Add(To);
Message.Subject = Subject;
Message.Bcc.Add(Recipient);
Message.IsBodyHtml = true;
Message.Body = Html;
Message.BodyEncoding = Encoding.GetEncoding("ISO-8859-1");
Message.SubjectEncoding = Encoding.GetEncoding("ISO-8859-1");
SMTPSender.Send(Message);
}
}
catch (Exception Ex)
{
Logger.Error(Ex.Message, Ex.GetBaseException());
return false;
}
return true;
}
謝謝=）
這是我如何使用它和它適用於我（設置類似於Mikko答案）：
首先設置配置部分：
<configuration>
<configSections>
<sectionGroup name="mailSettings">
<section name="default" type="System.Net.Configuration.SmtpSection" />
<section name="mailings" type="System.Net.Configuration.SmtpSection" />
<section name="partners" type="System.Net.Configuration.SmtpSection" />
</sectionGroup>
</configSections>
<mailSettings>
<default deliveryMethod="Network">
<network host="smtp1.test.org" port="587" enableSsl="true"
userName="test" password="test"/>
</default>
<mailings deliveryMethod="Network">
<network host="smtp2.test.org" port="587" enableSsl="true"
userName="test" password="test"/>
</mailings>
<partners deliveryMethod="Network">
<network host="smtp3.test.org" port="587" enableSsl="true"
userName="test" password="test"/>
</partners>
然後將是最好創建某種包裝的。請注意，大部分的代碼下面是從.NET源代碼採取SmtpClient here
public class CustomSmtpClient
{
private readonly SmtpClient _smtpClient;
public CustomSmtpClient(string sectionName = "default")
{
SmtpSection section = (SmtpSection)ConfigurationManager.GetSection("mailSettings/" + sectionName);
_smtpClient = new SmtpClient();
if (section != null)
{
if (section.Network != null)
{
_smtpClient.Host = section.Network.Host;
_smtpClient.Port = section.Network.Port;
_smtpClient.UseDefaultCredentials = section.Network.DefaultCredentials;
_smtpClient.Credentials = new NetworkCredential(section.Network.UserName, section.Network.Password, section.Network.ClientDomain);
_smtpClient.EnableSsl = section.Network.EnableSsl;
if (section.Network.TargetName != null)
_smtpClient.TargetName = section.Network.TargetName;
}
_smtpClient.DeliveryMethod = section.DeliveryMethod;
if (section.SpecifiedPickupDirectory != null && section.SpecifiedPickupDirectory.PickupDirectoryLocation != null)
_smtpClient.PickupDirectoryLocation = section.SpecifiedPickupDirectory.PickupDirectoryLocation;
}
}
public void Send(MailMessage message)
{
_smtpClient.Send(message);
}
}
然後，只需發送電子郵件：
新CustomSmtpClient（ 「郵件」）發送（MAILMESSAGE新（））
完美。很好很簡單。不需要任何新代碼。 – alphadogg 2011-01-07 13:31:01
Miko和@alphadog您的答案似乎適用於我遇到過的類似情況，但我不知道如何使用代碼Mikko在回答「return（SmtpSection）....」中指定的代碼。「您能詳細說明一下嗎？雖然可能不合適，但我會用我自己的代碼創建一個「答案」，而不是在SO上提出一個新問題。 – REMESQ 2012-02-07 13:27:08