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CC and BCC not working when passing empty string

Posted on 2008-10-09
9
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Last Modified: 2013-12-17
Hi
I have attached some code, problem is this section:
 if (strCC != string.Empty || strCC != "")
        {
            MailAddress cc = new MailAddress(strCC.ToString());
            msg.CC.Add(cc);
       }
        if (strBCC != string.Empty || strBCC != "")
        {
            MailAddress bcc = new MailAddress(strBCC.ToString());
            msg.Bcc.Add(bcc);
      }

When i pass an empty string to CC or BCC, no email is sent, but if i remove the 'if blocks' and give CC and BCC a valid email it works ok.

Not all webpages will send a CC or BCC hence the 'if' blocks.
Anyone any idea on how to get the code to when the CC or BCC is an empty string.
Regards
George

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Net.Mail;
 

/// <summary>

/// Summary description for PublicEmails

/// </summary>

public static class PublicEmails

{

    public static void PublicSendEmail(string strEmailFrom,

                                       string strEmailFromName,

                                       string strEmailTo,

                                       string strEmailToName,

                                       string strCC,

                                       string strBCC,

                                       string strSubject, 

                                       string strBody)

    {

        MailAddress from = new MailAddress(strEmailFrom.ToString(), strEmailFromName.ToString());

        MailAddress to = new MailAddress(strEmailTo.ToString(),strEmailToName.ToString());

        MailMessage msg = new MailMessage(from, to);

        msg.Subject = strSubject.ToString();

        msg.Body = strBody.ToString();

        //if (strCC != string.Empty || strCC != "")

        //{

            MailAddress cc = new MailAddress(strCC.ToString());

            msg.CC.Add(cc);

        //}

        //if (strBCC != string.Empty || strBCC != "")

        //{

            MailAddress bcc = new MailAddress(strBCC.ToString());

            msg.Bcc.Add(bcc);

        //}

        SmtpClient mailClient = new SmtpClient("LocalHost");

        try

        {

            mailClient.Send(msg);

        }

        catch (Exception ex)

        {

            throw new ApplicationException(ex.Message);

        }

    }

}

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Comment
Question by:BeginningWebDesign
  • 4
  • 2
  • 2
  • +1
9 Comments
 
LVL 26

Expert Comment

by:Anurag Thakur
ID: 22676458
can you please put a light on what exception comes when you run your code and i will request to try my code block to send the email again

if (strCC != null && strCC != string.Empty)
{
            MailAddress cc = new MailAddress(strCC.ToString());
            msg.CC.Add(cc);
}

if (strBCC != null && strBCC != string.Empty)
{
            MailAddress bcc = new MailAddress(strBCC.ToString());
            msg.Bcc.Add(bcc);
}
0
 

Author Comment

by:BeginningWebDesign
ID: 22676484
Hi ragi0017:

Its not throwing an error, everything goes ok and the data is inserted into the database, i'm just not receiving the email

George
0
 
LVL 26

Expert Comment

by:Anurag Thakur
ID: 22676532
sendmail does not throw an error when you try the if blocks for cc and bcc for empty strings and you also dont get the emails
thats quite surprising - if there are not exceptions then you should be getting the mails definitely
0
 
LVL 3

Expert Comment

by:trunghieubkit
ID: 22676560
Here's yours,

All email addresses must be matched with email expression before sending

string strPattern = @"[a-zA-Z0-9\-\.]+@[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,4}";


public static void PublicSendEmail(string strEmailFrom,

                                   string strEmailFromName,

                                   string strEmailTo,

                                   string strEmailToName,

                                   string strCC,

                                   string strBCC,

                                   string strSubject,

                                   string strBody)

{

    string strPattern = @"[a-zA-Z0-9\-\.]+@[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,4}";
 

    if (!Regex.IsMatch(strEmailFrom, strPattern) || !Regex.IsMatch(strEmailTo, strPattern))

    {

        return;

    }
 

    MailAddress from = new MailAddress(strEmailFrom, strEmailFromName);

    MailAddress to = new MailAddress(strEmailTo, strEmailToName);

    MailMessage msg = new MailMessage(from, to);
 

    msg.Subject = strSubject;

    msg.Body = strBody;
 

    if (Regex.IsMatch(strCC, strPattern))

    {

           MailAddress cc = new MailAddress(strCC.ToString());

           msg.CC.Add(cc);

    }
 

    if (Regex.IsMatch(strBCC, strPattern))

    {

        MailAddress bcc = new MailAddress(strBCC.ToString());

        msg.Bcc.Add(bcc);

    }
 

    SmtpClient mailClient = new SmtpClient("LocalHost");

    try

    {

        mailClient.Send(msg);

    }

    catch (Exception ex)

    {

        throw new ApplicationException(ex.Message);

    }

}

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Author Comment

by:BeginningWebDesign
ID: 22676912
Hi
Found problem, its seems to be with Windows XP, i can send 2 test emails and they then end up in my Yahoo spam folder, then for some reason XP will not send anymore, i've looked in the C:\Inetpub\mailroot folders and no messages are there, restart XP and the test emails are then sent
George
0
 
LVL 22

Expert Comment

by:prairiedog
ID: 22680211
Hi BeginningWebDesign, do you happen to have any anti-virus software installed, such as Symantec?
0
 

Author Comment

by:BeginningWebDesign
ID: 22682452
Hi prairiedog:
I have McAfee, but i have opened the ports for sending mail
Regards
George
0
 
LVL 22

Accepted Solution

by:
prairiedog earned 500 total points
ID: 22682498
Next time check the Queue folder under mailroot, you may find them sitting there.
I have Symantec installed and it keeps my outgoing emails in Queue folder until I reboot my machine. I end up with temporarily disabling Symantec real-time protection when I test my email function. Then turn the real-time protection back on after the test.
0
 

Author Closing Comment

by:BeginningWebDesign
ID: 31504564
Hi prairiedog:
That worked, still seems a bit odd for that to happen even though i have opened up port 110 and 25
Thanks
George
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