I have some inherited code which stores SMTP server, username, password in the system.net/mailSettings/smtp section of the Web.config.
It used to read them like so:
Configuration c = WebConfigurationManager.OpenWebConfiguration(HttpContext.Current.Request.ApplicationPath); MailSettingsSectionGroup settings = (MailSettingsSectionGroup)c.GetSectionGroup("system.net/mailSettings"); return settings.Smtp.Network.Host;
But this was failing when I had to deploy to a medium trust environment.
So following the answer from this question, I rewrote it to use GetSection() like so:
SmtpSection settings = (SmtpSection)ConfigurationManager.GetSection("system.net/mailSettings/smtp"); return settings.Network.Host;
But it's still giving me a SecurityException on Medium trust, with the following message:
Request for ConfigurationPermission failed while attempting to access configuration section 'system.net/mailSettings/smtp'. To allow all callers to access the data for this section, set section attribute 'requirePermission' equal 'false' in the configuration file where this section is declared.
So I tried this requirePermission attribute, but can't figure out where to put it.
If I apply it to the <smtp> node, I get a ConfigurationError: "Unrecognized attribute 'requirePermission'. Note that attribute names are case-sensitive."
If I apply it to the <mailSettings> node, I still get the SecurityException.
Is there any way to get at this config section programatically under medium trust? Or should I just give up on it and move the setting into <appSettings>?
The requirePemission attribute goes on the <configSections> grouping that matches the part fo the web.config you are having the security issue with.
additionally, you don't have to actually read the settings using code to send mail - you can simply use a blank SmtpClient:
new SmtpClient.Send(MyMailMessage);
it will send using the settings from the config sections by default.
You can create a SmtpClient as some suggested, but that is a bit overkill - just read the sections directly.
var section = ConfigurationManager.GetSection("system.net/mailSettings/smtp") as SmtpSection; var host=section.Network.Host
This works very well to me.
var smtp = new System.Net.Mail.SmtpClient(); var host = smtp.Host; var ssl = smtp.EnableSsl; var port = smtp.Port; var credential = new System.Net.Configuration.SmtpSection().Network; var username = credential.UserName; var password = credential.Password;
Joys of coding eh... always 1000 ways to skin a fish
System.Net.Configuration.SmtpSection smtp = new System.Net.Configuration.SmtpSection(); string from = smtp.From; //etc System.Net.Configuration.SmtpNetworkElement nt = new System.Net.Configuration.SmtpNetworkElement(); string host = nt.Host; //etc
To get the settings from the mail sections just create the mail objects.
var client = new SmtpClient(); var messageSettings = new MailMessage(); var host=client.Host; //etc... var fromAddress=messageSettings.From.Address; //etc..
Config:
<system.net> <mailSettings> <smtp from="xxxx@yahoo.com" deliveryMethod="Network" > <network host="smtp.mail.yahoo.com" port="587" enableSsl="true" userName="xxxx@yahoo.com" password="xxxxxxx"/> </smtp> </mailSettings> </system.net>
