Composing, Sending, and Attaching Files in Email0%

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Composing, Sending, and Attaching Files in Email

Beginner12 min read•Updated: Jul 11, 2026

Composing, Sending, and Attaching Files in Email (ईमेल लिखना और भेजना)

Writing an email requires adhering to proper addressing fields and understanding the underlying transmission protocols that deliver your messages worldwide in seconds.

1. The Compose Window: To, Cc, and Bcc

When you click the Compose (+) button to draft an email, you must specify the recipients:

Visual Architecture Blueprint

+-------------------------------------------------------------------------+
| New Message                                                     [ - ] [ ✕ ] |
+-------------------------------------------------------------------------+
| To:       student@gmail.com                                             |
| Cc:       principal@gmail.com                                           |
| Bcc:      inspector@gmail.com                                           |
| Subject:  Application for Leave - Sumit Sharma                          |
+-------------------------------------------------------------------------+
| Dear Sir,                                                               |
| I am writing to request leave from 14th to 16th September...             |
|                                                                         |
| [Attach Paperclip 📎]  [Send Button]                                    |
+-------------------------------------------------------------------------+

1
To (प्राप्तकर्ता): The primary recipient(s) for whom the message is directly intended.
2
Cc (Carbon Copy - कार्बन कॉपी):

Secondary recipients who need to be kept informed (e.g. keeping your supervisor in the loop).
Important: Everyone listed in To and Cc can SEE each other's email addresses!

1
Bcc (Blind Carbon Copy - गुप्त कार्बन कॉपी):

Secret recipients!
Crucial Feature: Recipients in the Bcc line receive a copy of the email, but NONE of the other recipients in To or Cc can see that this person received a copy!
Ideal when broadcasting exam notifications to 500 students while protecting their private email privacy.

1
Subject Line (विषय): A brief, clear summary of what the email is about (e.g. "Job Application for Computer Instructor"). Never leave the subject blank!

2. Attaching Files (Paperclip Icon 📎)

You can attach PDF certificates, resume documents, and photographs to an email:

Click the Paperclip icon (📎) at the bottom of the compose window.
Select your file from the computer.
Attachment Size Limit:
In Gmail: The maximum direct file attachment limit is 25 MB.
If your file exceeds 25 MB (e.g. a 100 MB video), Gmail automatically uploads it to Google Drive and inserts a download cloud link instead!

3. Email Communication Protocols (Super Important for CCC!)

The NIELIT exam frequently tests the technical protocols that govern email:

Protocol	Full Form	Port Number	Primary Function
SMTP	Simple Mail Transfer Protocol	Port 25 / 587	SENDING (पुश करना) outgoing emails from client to server
POP3	Post Office Protocol version 3	Port 110 / 995	RECEIVING (डाउनलोड करना) emails to a single local device
IMAP	Internet Message Access Protocol	Port 143 / 993	RECEIVING & SYNCING emails across multiple devices (Mobile + PC)

Interactive Quiz• Knowledge Check

Multiple Choice Questions

Question 1

What does the acronym "Bcc" stand for in an email compose window?

Question 2

Which networking protocol is exclusively responsible for SENDING outgoing emails across the internet?

Question 3

What is the standard maximum direct file attachment size limit in Google Gmail?

Question 4

Which icon is universally clicked to attach files and documents to an email?

Question 5

What is the primary advantage of IMAP over POP3 for receiving emails?

Next Lesson

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Continue learning with hands-on practice, examples, and exercises in the upcoming topic.

Related Lessons

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Creating and Managing an Email Account	Social Media Basics: Facebook, Instagram, LinkedIn, X

Practice Quiz

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Social Media Basics: Facebook, Instagram, LinkedIn, X

Composing, Sending, and Attaching Files in Email

Beginner12 min read•Updated: Jul 11, 2026

Study Materials

Composing, Sending, and Attaching Files in Email (ईमेल लिखना और भेजना)

Writing an email requires adhering to proper addressing fields and understanding the underlying transmission protocols that deliver your messages worldwide in seconds.

1. The Compose Window: To, Cc, and Bcc

When you click the Compose (+) button to draft an email, you must specify the recipients:

Visual Architecture Blueprint

+-------------------------------------------------------------------------+
| New Message                                                     [ - ] [ ✕ ] |
+-------------------------------------------------------------------------+
| To:       student@gmail.com                                             |
| Cc:       principal@gmail.com                                           |
| Bcc:      inspector@gmail.com                                           |
| Subject:  Application for Leave - Sumit Sharma                          |
+-------------------------------------------------------------------------+
| Dear Sir,                                                               |
| I am writing to request leave from 14th to 16th September...             |
|                                                                         |
| [Attach Paperclip 📎]  [Send Button]                                    |
+-------------------------------------------------------------------------+

1
To (प्राप्तकर्ता): The primary recipient(s) for whom the message is directly intended.
2
Cc (Carbon Copy - कार्बन कॉपी):

Secondary recipients who need to be kept informed (e.g. keeping your supervisor in the loop).
Important: Everyone listed in To and Cc can SEE each other's email addresses!

1
Bcc (Blind Carbon Copy - गुप्त कार्बन कॉपी):

Secret recipients!
Crucial Feature: Recipients in the Bcc line receive a copy of the email, but NONE of the other recipients in To or Cc can see that this person received a copy!
Ideal when broadcasting exam notifications to 500 students while protecting their private email privacy.

1
Subject Line (विषय): A brief, clear summary of what the email is about (e.g. "Job Application for Computer Instructor"). Never leave the subject blank!

2. Attaching Files (Paperclip Icon 📎)

You can attach PDF certificates, resume documents, and photographs to an email:

Click the Paperclip icon (📎) at the bottom of the compose window.
Select your file from the computer.
Attachment Size Limit:
In Gmail: The maximum direct file attachment limit is 25 MB.
If your file exceeds 25 MB (e.g. a 100 MB video), Gmail automatically uploads it to Google Drive and inserts a download cloud link instead!

3. Email Communication Protocols (Super Important for CCC!)

The NIELIT exam frequently tests the technical protocols that govern email:

Protocol	Full Form	Port Number	Primary Function
SMTP	Simple Mail Transfer Protocol	Port 25 / 587	SENDING (पुश करना) outgoing emails from client to server
POP3	Post Office Protocol version 3	Port 110 / 995	RECEIVING (डाउनलोड करना) emails to a single local device
IMAP	Internet Message Access Protocol	Port 143 / 993	RECEIVING & SYNCING emails across multiple devices (Mobile + PC)

Interactive Quiz• Knowledge Check

Multiple Choice Questions

Question 1

What does the acronym "Bcc" stand for in an email compose window?

Question 2

Which networking protocol is exclusively responsible for SENDING outgoing emails across the internet?

Question 3

What is the standard maximum direct file attachment size limit in Google Gmail?

Question 4

Which icon is universally clicked to attach files and documents to an email?

Question 5

What is the primary advantage of IMAP over POP3 for receiving emails?

Next Lesson

Social Media Basics: Facebook, Instagram, LinkedIn, X

Continue learning with hands-on practice, examples, and exercises in the upcoming topic.

Related Lessons

Previous Lesson	Next Lesson
Creating and Managing an Email Account	Social Media Basics: Facebook, Instagram, LinkedIn, X

Practice Quiz

Test your understanding of this lesson with 5 questions. Each question has one correct answer.

Previous Next