473,396 Members | 2,129 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,396 software developers and data experts.

Validating emails

Hi

I have this problem that client users enter emails incorrectly due to type
and either the domain name is invalid (Microsot.com instead of
Microsoft.com) or the syntax of the email (user'domain.com instead of
us**@domain.com). Is there any way to ensure a) email syntax is correct and
b) reverse dns or any other check to highlight invalid domain names?

Thanks

Regards
Sep 2 '06 #1
1 1284
I doubt it. You could use regular expressions to make sure the e-mail
is in a valid format. I would bet there's code here somewhere that
does is. Have a look around.

Sep 2 '06 #2

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

6
by: Alex Bink | last post by:
Hi, I have a validating event on a textbox in which I want to prevent the user to leave the textbox without entering the right data. Only if he clicks on another specific control he is allowed...
2
by: orekinbck | last post by:
Hi There I have spent alot of time trying to get a masked text box to validate e-mails, but with no success. Mainly because I can't figure out how to account for the wide variety of different...
11
by: tshad | last post by:
I have 4 dropdown boxes (fromDay, fromMonth, ToDay and ToMonth) I want to be able to test to make sure that the dates are valid and the the From dates are < the To dates. When I add the...
0
by: Joe | last post by:
Hi For a while now I have been finding postings of problems with the validating event not firing on controls properly. I too had this problem. The event would fire when clicking on another...
2
by: Chris Dunaway | last post by:
I have a form with a textbox and numerous panels, buttons and other controls. I have handled the textbox Validating and Validated events. The textbox will hold a filename. In the validating...
0
by: Gary Shell | last post by:
I am experiencing some strange behavior between a UserControl's validating event and a treeview control. Initially, I thought it was related to an issue in the Knowledgebase article 810852...
3
by: oopaevah | last post by:
Hello To prevent scross site scripting I am validating each value in the Request.Params collection against the following regular expression : ^*$ This only allows the following characters :...
4
by: John | last post by:
Hi I have this problem that client users enter emails incorrectly due to type and either the domain name is invalid (Microsot.com instead of Microsoft.com) or the syntax of the email...
0
by: =?Utf-8?B?Q2hhcmxlcw==?= | last post by:
Like many people, I normally use Yahoo! Mail via the web and like to keep all my emails stored on the Yahoo! server. However sometimes I can’t get access to a PC/the web and I download my emails...
0
by: emmanuelkatto | last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud. Please let me know. Thanks! Emmanuel
0
BarryA
by: BarryA | last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
1
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...
0
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
0
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
0
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
0
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows...
0
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...
0
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.