A checker is needed for bulk verification of e-mail addresses
94 USD Hello.
I need a checker that will verify email address validity — by list.
What I need:
Upload a list of email addresses (txt or csv)
The script/program checks:
Does the mailbox exist
Does it accept emails (is it valid)
Is there an MX record (optional)
Export: valid / invalid (with separation)
Preferably:
Without the need to send emails (check via SMTP ping, not spam)
Can be without interface — script or command-line tool
If needed — I work with proxies (can provide)
Large volumes (tens of thousands of emails)
Technologies:
Doesn't matter: Python, Node.js, whichever is more convenient. Main thing — stability.
Payment:
Open to suggestions. Payment upon completion.
If you have experience — write, we will discuss details.
-
5 days91 USD
655 4 0 5 days91 USD
Hello. I have extensive experience in script development. Ready to cooperate
-
2 days94 USD
902 11 0 2 days94 USD
Hello
I think your order is very attractive, and I want to offer my services as an experienced programmer.
I will be glad to discuss the details of your project and get started.
-
7 days223 USD
1315 7 0 7 days223 USD
Good day.
Ready to take on your project.
I can assemble automation for email validation for you, using no-code/low-code tools.
Write to me privately, we will discuss all the details and find the right solution for you.
-
3 days94 USD
1239 16 0 3 days94 USD
I can implement in Python, a console application or with GUI, it is not crucial.
Availability check can be done via SMTP, but disconnect before sending the email, so the user will not receive anything.
You can also try to attach a proxy, but I am not sure if any will work except SOCKS5.
And the output (txt, excel) I will implement according to your preference.
-
1 day94 USD
1251 35 1 3 1 day94 USD
Hello Alexey, I will write a checker (console) without sending emails.
Extensive experience in developing software in Python. Write to discuss how you want to save the result. I can add multithreading, proxies.
-
2 days94 USD
3516 51 2 2 days94 USD
Good day! My name is Oleksandr, I am a .NET developer with 4 years of commercial experience. I have experience working with large volumes of data, creating console tools for verification, processing, and automation, as well as configuring network requests and working through proxies.
Your task is clear — I can implement an email address checker that will work with lists in TXT or CSV format, verify the existence of the mailbox via SMTP (without sending emails), and check for MX records. Results will be divided into valid and invalid. If needed, proxy support and optimization for large volumes can be provided.
I can implement the solution in C# or Python — depending on what is more convenient for you. I am ready to discuss details and cost. If this collaboration format suits you — write, I will be happy to join the project.
-
8 days334 USD
322 8 days334 USD
Did a warming-up service for SMTP servers so they don't end up in spam, and emails are successfully delivered. In general, I am familiar with the nuances of mail server operation. I will complete the order for 15,000 UAH. 4,000 is too little. If you're interested - let's cooperate. I will create a good tool for you with the possibility of quick deployment and custom settings to make it convenient to work.
-
1 day94 USD
588 11 0 1 day94 USD
Hello, I developed this email validity checker for myself a couple of months ago, I can tell you the details of this check in private and give it to you
-
3 days94 USD
9927 117 0 3 days94 USD
Hello.
I am a NodeJS developer. Ready to take on the project. Write to me, let's discuss.
-
2 days94 USD
8773 60 0 1 2 days94 USD
Hello. I am ready to help create a checker to verify the validity of e-mail addresses. I have experience in developing similar tools, and I can create a script that will check the existence of mailboxes and validity without sending emails.
I can use Python or Node.js depending on your preferences. The script will be able to handle large volumes, as you specified, and will provide an export of valid and invalid addresses. I also know how to work with proxies if necessary.
Let's discuss the details and your requirements. I am confident I can complete the task and offer a stable solution.
-
Подобные программы есть в сети в открытом доступе. Но такие технологии валидации почтовики давно научились обманывать.
-
Current freelance projects in the category Bot Development
I am looking for a strong specialist in trading bots and agents.
250 USD
It is important to start - TODAY I need a person who has experience in writing trading bots on DEXs (needed on the BSC network) with an understanding of transaction costs, gas, etc. I want to test several trading strategies on a real trading agent I need to quickly… Cryptocurrency & Blockchain, Bot Development ∙ 9 hours 44 minutes back ∙ 14 proposals |
Creation of a TikTok farm with income generation
602 USD
Looking for a person who can write software for a TikTok farm, so we can generate traffic and earn income. We are seeking a ready-made solution with a full cycle. Python, Bot Development ∙ 1 day 11 hours back ∙ 15 proposals |
Pocket Option trading bot
71 USD
I need a bot and your expertise who has already been able to create a similar bot when the bets are correct, they are read from Pocket Option I am interested in Brent Oil I do not need a beginner or someone who will just write code for the sake of it I need someone who knows… AI & Machine Learning, Bot Development ∙ 2 days 12 hours back ∙ 19 proposals |
TG BOT for Auto Ria
156 USD
We are interested in creating a bot that can send 1000+ exchange offers per day from one account. Authorization through Ria login and password, with characteristics exclusively those listed on the portal. The ability to limit the number of exchange requests. Also, monitoring… Bot Development ∙ 2 days 14 hours back ∙ 41 proposals |
Integration of Viber in 8.3
223 USD
Need Viber integration into own CRM (1C 8.3)About the Company The company "Domofon System" is engaged in the installation and maintenance of intercom systems. Base of over 40,000 subscribers. We work on our own customized system based on 1C 8.3. We are looking for a specialist… Databases & SQL, Bot Development ∙ 2 days 14 hours back ∙ 16 proposals |