How To Verify Valid Email Id In Asp.net
Feb 1, 2011I have bulk email id in database. I need to verify whether email id is existing or not before sending a mail in asp.net.
View 1 RepliesI have bulk email id in database. I need to verify whether email id is existing or not before sending a mail in asp.net.
View 1 RepliesWell its not very important, but i have 500 emails (yahoo) and i want to make a program that checks if these emails are valid. Basically i want to send newsletters to these emails, but i want to know if the emails are really valid. How can i do that. I know there are some programs i can use, but i want to make my own program.
View 8 RepliesHere is the problem, I have an Access form and a textbox for an e-mail address. The email address is not required, I only want to check for a valid email address when a value or address has been entered into the e-mail filed. Example: If e-mail is not empty or if email field has a value, then check for the follow elements, matched the email address with the required format. If the e-mail field is empty, do not look for anything, move on.
View 1 RepliesI know you can use regex to verify an email address format, but is there a way to, outside of sending an email to the address to verify that an email address is actually a working email address?
View 4 RepliesI would like to know if there is any way that you can verify that a email address actually exists like using this tool: [URL]. would like to wirte an application that does this in visual basics.
View 6 RepliesI have a form1 that logs in the user to my hotmail/live email sender. In form1 I have 2 textboxes. First ask for email address for live/hotmail and the other ask for the password. Then it takes you to form2 (email sender). My problem is if the user enters a wrong password or email the program still takes them to form2... hence the program wont work if they try to send an email.. Is there a way I can verify if at form1 that the email and password is correct before it moves on the form2?
View 11 RepliesI cant find any good example of vb.net checking if email is valid, as example "something@yahoo.com"
View 4 RepliesCheck Email if gmail and valid password length.
Screenshot:
Public Class Form1
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
[Code].....
This code might be useful for validating email address, and for simple email sender/bomber.
Currently, to avoid errors from being thrown up due to invalid email addresses, I do the following:
Dim mailAddress As MailAddress
Try
mailAddress = New MailAddress("testing@invalid@email.com")
Catch ex As Exception
'Invalid email
End Try
However, rather than depending on Try..Catch, is there a way of validating that the email address will be 100% valid for the MailAddress type?I know there a plenty of regex functions out there for validating emails, but I'm looking for the function which the MailAddress type uses to validate its addresses.
I am sending an email with an attachment using the following Code
Dim msg As New System.Net.Mail.MailMessage(req.EmailFrom, req.EmailTo)
Dim att As New System.Net.Mail.Attachment("C:Documents and SettingsmichaelrDesktop1216259.pdf")
With msg
.Attachments.Add(att)
[code]....
The file size of the attachment is 396KB, upon the recipient receiving the email outlook shows the file size as 543Kb. Strange thing is if I send an email with the same attachment using outlook the file size is 396Kb.I understand that file sizes can increase due to the attachment being base 64 encoded as opposed to just raw binary.What I am failing to see is why outlook send a file which is 396KB in size but in code when sending it, the same file is 543Kb.
how would i implement a way that i would not hard code the email message that the application send to email recipients? how will i also include email message formatting (text in bold, italic, etc.)?
View 2 RepliesI'm trying to get my program to send very simple text email messages. I did do a search beforehand, and found that I was having the same issue as someone else, but the specific question I have was not answered --
I've learned that if you're trying to send mail, you need an SMTP server... I found this list here but every one of them I've tried yields the same "Failure sending mail" error.
Here's my
Dim mail As New MailMessage()
mail.From = New MailAddress("me@mycompany.com")
mail.To.Add("destination-email@whatever.com")
[CODE]...
Is the problem that I need to show "credentials" (i.e. user/pass)? If so, what would those credentials be? Can I use my yahoo email SMTP server with my login info to do it? And is this all I'd need to add to add the credentials?
smtp.Credentials = New NetworkCredential("MyUsername", "MyPassword")
(before the smtp.Send, of course)
A client for our company contains an apostrophe in their email name joe's@joe.com. I was advised that this is the correct and current email for the given client. Below is the Expression string I am using with Regex (which I copied from the internet somewhere) to validate email addresses. How can this expression be modified to allow/accept apostrohe's?
strRegex =
"^([a-zA-Z0-9_-.]+)@(([[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.)|(([a-zA-Z0-9-]+.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(]?)$"
I have to make a basic program that: Create a program with a simple interface that
1. Asks the user type his/her email address into a textbox.
2. When the user clicks the "Evaluate Email Address" button, one of two message boxes pops up: "That is a valid email address!" with an "Information" icon, or "That is an invalid email address!" and on a second line, "Please retype your email address.", with an "Exclamation" icon
3. To be considered valid, the email address must -include an "@" symbol, and -it must end in either ".com", ".net", or ".org" or ".edu" (I don't know how to check a string and test if its last four characters end with any of these and make it say not valid email address. I think I might have to use a case statement)
I'm using the Chilkat add-on to read email from a pop3 server. I can download the headers fine but the headers all download into one column.How can I get my email to put the headers in the appropriate columns?
'Display the From email address and the subject.
ListView2.Items.Add(email.From)
ListView2.Refresh()
ListView2.Items.Add(email.EmailDate)
ListView2.Refresh()
[Code]...
What I am trying to do is to download the "From" person into the "From" columns and the "Date" of the email into the date column, so on and so forth but I'm not able to get them to go into their separate columns.
I am buidling an application that users can use to submit text data and attachments to email recipients. Certain fields, quite a few in fact from the textboxes in the app will be in the email body, and some in the subject line.This is how I am doing it right now, but I figured there has to be a better way. In VB it is one single line of code, not many like it is here. Ideally I would like to be able to better control the positioning in the message body.
mail.Body = String.Concat(Label1.Text, " ", TextBox1.Text, " ", Label2.Text, " ", TextBox3.Text, " ", Label5.Text, " ", DateTimePicker1.Text, " ", Label3.Text, " ", TextBox2.Text, " ", Label6.Text, " ", RichTextBox1.Text, " ", Label7, " ", RichTextBox2.Text)
I wouuld like to open outlook with new email with provided subject line, body message and attachment but no email address. User will enter the email address and click send . How can I do this?
I used following code but it gives me error for to address
Dim SmtpServer
As
New SmtpClient()
[Code]....
I am creating an application in ASP.Net 2.0, the user can choose the service that he want and submit the request after choosing the form and filling the needed details the user should click on the submit button, then two emails should be sent; a confirmation email to the user him/herself and a notification email to his/her direct manager to get the approval on the requested ticket.How can I send the emails using VB language?
View 9 RepliesI am development a small app for auto response all new emails with custom responses. My problem is that I don't know how open the email (make click on the subject link) on gmail. I am using web browser control, so I need to know how make click on the email titles for open each emails.
View 3 RepliesWhat I would like to do is create a command button that launches an email from outlook attaching the current word document to a set email address. I'm not fussed if the word document is saved or not as it is only the email receipent that needs it, likewise I don't mind if the code instructs the email to send of just opens it ready to be sent.I have read through loads of forums and tried loads of codes but cannot get any to work.
View 3 RepliesI've followed the instructions from this article http:[url]..... . My only problem is It compiles fine but no email arrives. I have a feeling it's for obvious reasons which escape me. This is my aspx.vb page.
Imports System.Web.Mail
Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button2.Click
Const ToAddress As String = "paul.ramirez@att.net"[code]....
im using vb8.net im struggling to make a program that will display email addresses so in other words if im using ms outlook then by the click of the button the program must go in to the windows registry and then look in the place where the email address is and then read that part and display the address in a text box.
View 8 Repliesi can send email through vb.net behind code but how do i implement so that the recipient cannot see the sender email and only the name?i had done alot of research but i can't find any solution about this problem
[Code]...
How Can I EMail RichTextBox Contents By Default Email Client Using vb.net?
View 1 RepliesI am sending an email using VS2010 VB which works fine, except I would like to have the recipient see their name in lieu of their email address upon receiving the email. I've tried different 'To' addresses, ([URL]), but nothing seems to work. It always shows the email address when received.
View 2 RepliesI have a grid view control in my application.
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True" AutoGenerateColumns="False" DataKeyNames="CPUserID" DataSourceID="GetSelectDelegatesDataSource">
<Columns>
[code]....
And I have a image button
<asp:ImageButton ID="ibtnSendInvites" Visible="false" runat="server" ImageUrl="~/images1/send_button.png" />
If you see above code you can find that there is check box functionality in my gridview. I have email address boundfield in my gridview. I want to send an email to the email addresses which are been checked in gridview.
how to validation Domain and Email Address for sending email in visual basic 2010 i used Code Below
[code]...
But Get Return abc123@xsd.com is a valid EmailID How is Valid The Domain is Not Valid Then..?
I've created a little procedure that I use to verify if a value does actually exist. I'm currently using this all throughout my application for things such as verifying if a control's EditValue actually has a value. I was wondering if I have missed any scenarios where a value would not be available, missing, non-existent, blank, etc., and how would I incorporate in my procedure.
Public Function ValueExist(ByRef CheckValue As Object) As Boolean
Try
ValueExist = True
If IsDBNull(CheckValue) Then
ValueExist = False
[Code] .....
I am working on an app and cannot remember how to verify that the first three characters in a zip code are a specific number.
View 1 RepliesI have not been able to successfully verify a user with LDAP for an ASP.NET web application. I have done so on our own network against Active Directory, but this is against a server outside of our network that is OID (Oracle Internet Directory).Usually, I use the following code with no problem.
Dim myDirectoryEntry As New System.DirectoryServices.DirectoryEntry("LDAP://1.2.3.4:999/OU=SomeOU,DC=Something,DC=com")
myDirectoryEntry.AuthenticationType = System.DirectoryServices.AuthenticationTypes.Sealing
myDirectoryEntry.AuthenticationType = System.DirectoryServices.AuthenticationTypes.Secure
Try
[Code]...
After that, I haven't been able to find a method to verify a user's log in information with their password and then pull back some information.