Mass email sender – Send emails using Gmail or any SMTP account – MailerKing tool

Email is one of the most common contact methods around the word. Because of its convenience, sending mail to lots of receivers can help you get in touch with multiple customers at the same time. However, Google can mark spam if you send too many mails manually on the same IP. Our MailerKing software can work as a mass email sender without being marked as spam.


  • Send mass email with Gmail accounts (Using web interface)
  • Send email in bulk with SMTP server
  • The software simulate different devices
  • Runs with multiple threads
  • Can use rotated proxy to run
  • The software is easy to use
  • Frequently update
  • Save time and cost


When you buy MailerKing – Mass email sender software, we will provide you with 2 links, consisting of software link and useragent file. Download both files and unzip the MailerKing.rar, then run the MailerKing.exe. to open the software.

Double click on MailerKing.exe to open the software

Enter the provided license username and password into Login and Password.

Click OK to login.

Nhập tên đăng nhập và mật khẩu để đăng nhập vào phần mềm
Enter the provided license username and password to Log in

You choose one of two ways:

  • Run now: Run the software instantly
  • Schedule: Schedule the application to run at specific time

>>Learn more: How to use Schedule Function.


Có 2 cách để sử dụng tool reg nick Facebook
Select way to run then click OK

This is the interface of the MailerKing bot


These are fields that you need to set up before running any function of this MailerKing software.

A1. Send Method

Select one of these two send methods:

  • Gmail Web: the software will log in Gmail accounts and send emails in bulk
  •  SMTP Server: the software send mass email with SMTP server

Note: SMTPserver (Simple Mail Transfer Protocol) can send email in bulk without logging Email accounts.

A2. Proxy Source

To avoid being marked as spam, you should use proxies.

>> You can rent safe and cheap proxy from this website

A2.1. From File

At Proxy Source, select From File

Next, at File Proxy section:

  • In case you select Lines From Url, you paste the proxy address link into File proxy section as shown

  •  In case you select Lines From File, you create a text file where you put the proxies per lines. Click on   => select the created proxy file.

Note:  Proxy format is IP:Port:Username:Password. Leave username and password empty if your proxy doesn’t have username and password ( Some proxies work with IP authentication instead of using username and password).

A2.2. From Data

At Proxy Source, select From Data

The software will use proxies that were imported with Email accounts. Kindly refer to A11. Accounts to learn how to import data into software.

A2.3. No proxy

At Proxy Source, select No proxy

The software will use the IP of your computer to send email.

Note: If you create too many emails on the same IP, your mails can be marked as spams.

A3. Useragent File

At Useragent section, click on  => select the useragent file that was provided.

A4. Run

This is the number of times that you want the software to run. You can leave it as the default.

Note: If you put “999999”, the software will run continuously until you stop it manually.

A5. Threads

This is the number of mail that you send at the same time.

Each thread will open a separate browser which has different fingering and IP.  Provide number of threads that complies with your computer configuration.

A6. Cookies Folder & Data Folder

  • Folder Cookies is a place where the software will store cookies and profiles of the accounts. Software will use cookies and profiles for the next runs without logging back into accounts. Create a new Cookies folder on any hardware disk that you want to save cookies and profile and get the path to put into the setting as shown

  • Create a new folder named Data to contain data on any hardware disk that you want and get the path to put into the setting as shown

A7. Sleep

Sleep is the range of time among run turns.

Note: Unit is Milliseconds (Ex: 30000 = 30 seconds)

Example: After finishing running one turn of threads, the software will delay in 3-6 seconds before performing the next turn of threads if you set up as shown

A8. Receiver Email

First, you create a text file to contain email address of receivers.

Next, at Receiver Email section, click on  => select the text file of email which was created.

A9. Subject

First, you create a text file to contain titles of emails that you want to send

Next, at Subject section, click on  => select the text file of titles which was created.

A10. Content

You can select one of these two options: LinesFromFile or RandomString

A10.1. LinesFromFile

First, if you want to send email with 1 line content only, select LinesFromFile at Content section.

Then, you create a text file to save contents of emails that you want to send

Next, at Content section, click on  => select the text file of contents which was created.

A10.2. RandomString

In case you want to send content email with more than 1 lines, select RadomString at Content section.

Next, you create a text file to save content of email that you want to send per lines

Then, you click on  at Content section => copy and paste the content that you want to send from the text file which has just been created above => click on @Test to see the content.

A11. Accounts

First, you need to import accounts into Data



  • You can refer to this Template.
  • If you select Gmail Web at Send Method section, you need to import Gmail, PasswordRecovery EmailProxy (if any)Port (if any), Proxy Username (if any), Proxy Password (if any).
  • If you select SMTP at Send Method section, you need to import Email (Gmail, Yahoo, Gmx, Hotmail, etc.) with activated SMTPPasswordRecovery EmailProxy (if any)Port (if any), Proxy Username(if any), Proxy Password (if any), SMTP Server, SMTP Port. 

>>> Refer to GmailProfile Bot which supports in activating SMTP in bulk

  • You can search on Google to take SMTP Server & SMTP Port of type of email that you imported.

          For example: 

    • Imap Server and Imap Port of Gmail accounts.

Imap Server và Imap Port của Gmail

    • Imap Server and Imap Port of Yahoo accounts.

Imap server và Imap Port của Yahoo

Then, select the group that you want to use at Accounts section


B1. Gmail Web

At Send Method, you select Gmail Web

Next, check all the parameters mentioned in part A

Finally, click OK

B2. SMTP Server

At Send Method, you select SMTP Server

Note: Remember to activate SMTP of Email accounts that you imported at Accounts section

Then, check all the parameters mentioned in part A

Finally, click OK

Tutorial Video 

Thank you for following this Tutorial, we hope it will be useful for you!

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