Web Forms :: Check Whether Email Address Exists Without Email Confirmation
May 7, 2015
In addition to the process of regex syntax validation of Email Addresses entered by users, I'm trying to check if the entered email address is a real one and does exist?The best I could achieve is to "Ping" the host the email address is associated with. But there are some other terms in the industry like Handshaking with Email Server, etc.not necessarily with 100% confirmation accurary!
How can I check if an email address actually exists?
I have a list of email addresses which I want to screen for dead email accounts (without sending an email msg with a hyperlink). Is there a web-service for this? Or C# code (which I prever instead of sending the data to someone else)?
I want to validate the email id in clients side, so that to prevent the postback of page to server, and every user should registered with email id... so i want to validate email id at client side.. i.e. should be check it is exist in the database or not.
I'm trying to error handle a registration aspx/c# page on my application and want to run a check whether the email address that a user has tried to register already exists as the email address is used as a primary key in my database.
I have tried IF NOT EXISTS/IF EXISTS but these dont give the desired effect so was wondering if there was another way around it?
I want to check the entered email id already exists in my database or not. For that I need the Text box lost focus event so that I can call it in update panel trigger asynchronously. whereas in my event I can check whether the entered value exists in database or not.
In the new user registration page, how to check whether the email id entered by a user is valid? I want to check the entered email id actually exists before the user submits his information. do not give code for checking email id string using regular expression, I want to check whether the entered email id actually exists.
I am building an email feature in my website (jobs site). By using this functionality, recruiters will be able to send emails to candidates. I want an option so that the user can also set 'From Address' and the email should be ANTI-SPAM compliant.
How me can validate a email textbox to take only valid email address if error occur it show the error message in this textbox or as a tooltip. because in the form there is no space to show error message.
I want to send a confirmation email to the user after they register to my website. I am using CreateUserWizard of .NET and I use C#.
My idea is after users register they get an email with a link. If they click the link, they will come to an activation page. I have done this so far:
After Guid userId = (Guid)user.ProviderUserKey;
I am very confused and not sure what to do. I understand that i need to email an url with the userID to user's email upon registration, but how to do this, and when user clicks that url in that email, how that url will automatically come to activation page?
I've searched so much and tried so many differnet solutions, I can't get it to work. I have tried the MailDefinitions in the <CreateUserWizard> tag, and I have also tried to send the email in the code behind for the OnCreatedUser Event.Oddly enough, I have a Contact Us page, and emails send fine from it, but I can't for the life of me get a simple user confirmation email to send.
Im currently trying to send an email confirmation once a user signs up. Ive looked at links already on the asp.net forums and have had no luck getting it to function. My Sign up page reads data to a SQL Server correctly, what im trying to do is when they click BtnSignUp they will automatically be sent an email confirning that they registered. within my database I have a table "tblUser" and the field within it are "Email" "Password".