A single MIME message part.

The child MIME message parts of this part. This only applies to container MIME message parts, for example multipart/*. For non- container MIME message part types, such as text/plain, this field is empty. For more information, see RFC 1521.

The immutable ID of the message part.

The MIME type of the message part.

List of headers on this message part. For the top-level message part, representing the entire message payload, it will contain the standard RFC 2822 email headers such as To, From, and Subject.

The filename of the attachment. Only present if this message part represents an attachment.

The message part body for this part, which may be empty for container MIME message parts.

An email message.

The ID of the thread the message belongs to. To add a message or draft to a thread, the following criteria must be met:

• The requested threadId must be specified on the Message or Draft.Message you supply with your request.
• The References and In-Reply-To headers must be set in compliance with the RFC 2822 standard.
• The Subject headers must match.

A short part of the message text.

Estimated size in bytes of the message.

The entire email message in an RFC 2822 formatted and base64url encoded string. Returned in messages.get and drafts.get responses when the format=RAW parameter is supplied.

The parsed email structure in the message parts.

List of IDs of labels applied to this message.

The internal message creation timestamp (epoch ms), which determines ordering in the inbox. For normal SMTP-received email, this represents the time the message was originally accepted by Google, which is more reliable than the Date header. However, for API-migrated mail, it can be configured by client to be based on the Date header.

The immutable ID of the message.

The ID of the last history record that modified this message.

An email message.

The ID of the thread the message belongs to. To add a message or draft to a thread, the following criteria must be met:

• The requested threadId must be specified on the Message or Draft.Message you supply with your request.
• The References and In-Reply-To headers must be set in compliance with the RFC 2822 standard.
• The Subject headers must match.

A short part of the message text.

Estimated size in bytes of the message.

The entire email message in an RFC 2822 formatted and base64url encoded string. Returned in messages.get and drafts.get responses when the format=RAW parameter is supplied.

The parsed email structure in the message parts.

List of IDs of labels applied to this message.

The internal message creation timestamp (epoch ms), which determines ordering in the inbox. For normal SMTP-received email, this represents the time the message was originally accepted by Google, which is more reliable than the Date header. However, for API-migrated mail, it can be configured by client to be based on the Date header.

The immutable ID of the message.

The ID of the last history record that modified this message.

A draft email in the user's mailbox.

The message content of the draft.

The immutable ID of the draft.

An email message.

The ID of the thread the message belongs to. To add a message or draft to a thread, the following criteria must be met:

• The requested threadId must be specified on the Message or Draft.Message you supply with your request.
• The References and In-Reply-To headers must be set in compliance with the RFC 2822 standard.
• The Subject headers must match.

A short part of the message text.

Estimated size in bytes of the message.

The entire email message in an RFC 2822 formatted and base64url encoded string. Returned in messages.get and drafts.get responses when the format=RAW parameter is supplied.

The parsed email structure in the message parts.

List of IDs of labels applied to this message.

The internal message creation timestamp (epoch ms), which determines ordering in the inbox. For normal SMTP-received email, this represents the time the message was originally accepted by Google, which is more reliable than the Date header. However, for API-migrated mail, it can be configured by client to be based on the Date header.

The immutable ID of the message.

The ID of the last history record that modified this message.

A record of a change to the user's mailbox. Each history change may affect multiple messages in multiple ways.

Messages deleted (not Trashed) from the mailbox in this history record.

Messages added to the mailbox in this history record.

List of messages changed in this history record. The fields for specific change types, such as messagesAdded may duplicate messages in this field. We recommend using the specific change-type fields instead of this.

Labels removed from messages in this history record.

Labels added to messages in this history record.

The mailbox sequence ID.

The text color of the label, represented as hex string. This field is required in order to set the color of a label. Only the following predefined set of color values are allowed:

000000, #434343, #666666, #999999, #cccccc, #efefef, #f3f3f3, #ffffff, #fb4c2f, #ffad47, #fad165, #16a766, #43d692, #4a86e8, #a479e2, #f691b3, #f6c5be, #ffe6c7, #fef1d1, #b9e4d0, #c6f3de, #c9daf8, #e4d7f5, #fcdee8, #efa093, #ffd6a2, #fce8b3, #89d3b2, #a0eac9, #a4c2f4, #d0bcf1, #fbc8d9, #e66550, #ffbc6b, #fcda83, #44b984, #68dfa9, #6d9eeb, #b694e8, #f7a7c0, #cc3a21, #eaa041, #f2c960, #149e60, #3dc789, #3c78d8, #8e63ce, #e07798, #ac2b16, #cf8933, #d5ae49, #0b804b, #2a9c68, #285bac, #653e9b, #b65775, #822111, #a46a21, #aa8831, #076239, #1a764d, #1c4587, #41236d, #83334c #464646, #e7e7e7, #0d3472, #b6cff5, #0d3b44, #98d7e4, #3d188e, #e3d7ff, #711a36, #fbd3e0, #8a1c0a, #f2b2a8, #7a2e0b, #ffc8af, #7a4706, #ffdeb5, #594c05, #fbe983, #684e07, #fdedc1, #0b4f30, #b3efd3, #04502e, #a2dcc1, #c2c2c2, #4986e7, #2da2bb, #b99aff, #994a64, #f691b2, #ff7537, #ffad46, #662e37, #ebdbde, #cca6ac, #094228, #42d692, #16a765

The background color represented as hex string #RRGGBB (ex #000000). This field is required in order to set the color of a label. Only the following predefined set of color values are allowed:

000000, #434343, #666666, #999999, #cccccc, #efefef, #f3f3f3, #ffffff, #fb4c2f, #ffad47, #fad165, #16a766, #43d692, #4a86e8, #a479e2, #f691b3, #f6c5be, #ffe6c7, #fef1d1, #b9e4d0, #c6f3de, #c9daf8, #e4d7f5, #fcdee8, #efa093, #ffd6a2, #fce8b3, #89d3b2, #a0eac9, #a4c2f4, #d0bcf1, #fbc8d9, #e66550, #ffbc6b, #fcda83, #44b984, #68dfa9, #6d9eeb, #b694e8, #f7a7c0, #cc3a21, #eaa041, #f2c960, #149e60, #3dc789, #3c78d8, #8e63ce, #e07798, #ac2b16, #cf8933, #d5ae49, #0b804b, #2a9c68, #285bac, #653e9b, #b65775, #822111, #a46a21, #aa8831, #076239, #1a764d, #1c4587, #41236d, #83334c #464646, #e7e7e7, #0d3472, #b6cff5, #0d3b44, #98d7e4, #3d188e, #e3d7ff, #711a36, #fbd3e0, #8a1c0a, #f2b2a8, #7a2e0b, #ffc8af, #7a4706, #ffdeb5, #594c05, #fbe983, #684e07, #fdedc1, #0b4f30, #b3efd3, #04502e, #a2dcc1, #c2c2c2, #4986e7, #2da2bb, #b99aff, #994a64, #f691b2, #ff7537, #ffad46, #662e37, #ebdbde, #cca6ac, #094228, #42d692, #16a765

The text color of the label, represented as hex string. This field is required in order to set the color of a label. Only the following predefined set of color values are allowed:

000000, #434343, #666666, #999999, #cccccc, #efefef, #f3f3f3, #ffffff, #fb4c2f, #ffad47, #fad165, #16a766, #43d692, #4a86e8, #a479e2, #f691b3, #f6c5be, #ffe6c7, #fef1d1, #b9e4d0, #c6f3de, #c9daf8, #e4d7f5, #fcdee8, #efa093, #ffd6a2, #fce8b3, #89d3b2, #a0eac9, #a4c2f4, #d0bcf1, #fbc8d9, #e66550, #ffbc6b, #fcda83, #44b984, #68dfa9, #6d9eeb, #b694e8, #f7a7c0, #cc3a21, #eaa041, #f2c960, #149e60, #3dc789, #3c78d8, #8e63ce, #e07798, #ac2b16, #cf8933, #d5ae49, #0b804b, #2a9c68, #285bac, #653e9b, #b65775, #822111, #a46a21, #aa8831, #076239, #1a764d, #1c4587, #41236d, #83334c #464646, #e7e7e7, #0d3472, #b6cff5, #0d3b44, #98d7e4, #3d188e, #e3d7ff, #711a36, #fbd3e0, #8a1c0a, #f2b2a8, #7a2e0b, #ffc8af, #7a4706, #ffdeb5, #594c05, #fbe983, #684e07, #fdedc1, #0b4f30, #b3efd3, #04502e, #a2dcc1, #c2c2c2, #4986e7, #2da2bb, #b99aff, #994a64, #f691b2, #ff7537, #ffad46, #662e37, #ebdbde, #cca6ac, #094228, #42d692, #16a765

The background color represented as hex string #RRGGBB (ex #000000). This field is required in order to set the color of a label. Only the following predefined set of color values are allowed:

000000, #434343, #666666, #999999, #cccccc, #efefef, #f3f3f3, #ffffff, #fb4c2f, #ffad47, #fad165, #16a766, #43d692, #4a86e8, #a479e2, #f691b3, #f6c5be, #ffe6c7, #fef1d1, #b9e4d0, #c6f3de, #c9daf8, #e4d7f5, #fcdee8, #efa093, #ffd6a2, #fce8b3, #89d3b2, #a0eac9, #a4c2f4, #d0bcf1, #fbc8d9, #e66550, #ffbc6b, #fcda83, #44b984, #68dfa9, #6d9eeb, #b694e8, #f7a7c0, #cc3a21, #eaa041, #f2c960, #149e60, #3dc789, #3c78d8, #8e63ce, #e07798, #ac2b16, #cf8933, #d5ae49, #0b804b, #2a9c68, #285bac, #653e9b, #b65775, #822111, #a46a21, #aa8831, #076239, #1a764d, #1c4587, #41236d, #83334c #464646, #e7e7e7, #0d3472, #b6cff5, #0d3b44, #98d7e4, #3d188e, #e3d7ff, #711a36, #fbd3e0, #8a1c0a, #f2b2a8, #7a2e0b, #ffc8af, #7a4706, #ffdeb5, #594c05, #fbe983, #684e07, #fdedc1, #0b4f30, #b3efd3, #04502e, #a2dcc1, #c2c2c2, #4986e7, #2da2bb, #b99aff, #994a64, #f691b2, #ff7537, #ffad46, #662e37, #ebdbde, #cca6ac, #094228, #42d692, #16a765

The text color of the label, represented as hex string. This field is required in order to set the color of a label. Only the following predefined set of color values are allowed:

000000, #434343, #666666, #999999, #cccccc, #efefef, #f3f3f3, #ffffff, #fb4c2f, #ffad47, #fad165, #16a766, #43d692, #4a86e8, #a479e2, #f691b3, #f6c5be, #ffe6c7, #fef1d1, #b9e4d0, #c6f3de, #c9daf8, #e4d7f5, #fcdee8, #efa093, #ffd6a2, #fce8b3, #89d3b2, #a0eac9, #a4c2f4, #d0bcf1, #fbc8d9, #e66550, #ffbc6b, #fcda83, #44b984, #68dfa9, #6d9eeb, #b694e8, #f7a7c0, #cc3a21, #eaa041, #f2c960, #149e60, #3dc789, #3c78d8, #8e63ce, #e07798, #ac2b16, #cf8933, #d5ae49, #0b804b, #2a9c68, #285bac, #653e9b, #b65775, #822111, #a46a21, #aa8831, #076239, #1a764d, #1c4587, #41236d, #83334c #464646, #e7e7e7, #0d3472, #b6cff5, #0d3b44, #98d7e4, #3d188e, #e3d7ff, #711a36, #fbd3e0, #8a1c0a, #f2b2a8, #7a2e0b, #ffc8af, #7a4706, #ffdeb5, #594c05, #fbe983, #684e07, #fdedc1, #0b4f30, #b3efd3, #04502e, #a2dcc1, #c2c2c2, #4986e7, #2da2bb, #b99aff, #994a64, #f691b2, #ff7537, #ffad46, #662e37, #ebdbde, #cca6ac, #094228, #42d692, #16a765

The background color represented as hex string #RRGGBB (ex #000000). This field is required in order to set the color of a label. Only the following predefined set of color values are allowed:

000000, #434343, #666666, #999999, #cccccc, #efefef, #f3f3f3, #ffffff, #fb4c2f, #ffad47, #fad165, #16a766, #43d692, #4a86e8, #a479e2, #f691b3, #f6c5be, #ffe6c7, #fef1d1, #b9e4d0, #c6f3de, #c9daf8, #e4d7f5, #fcdee8, #efa093, #ffd6a2, #fce8b3, #89d3b2, #a0eac9, #a4c2f4, #d0bcf1, #fbc8d9, #e66550, #ffbc6b, #fcda83, #44b984, #68dfa9, #6d9eeb, #b694e8, #f7a7c0, #cc3a21, #eaa041, #f2c960, #149e60, #3dc789, #3c78d8, #8e63ce, #e07798, #ac2b16, #cf8933, #d5ae49, #0b804b, #2a9c68, #285bac, #653e9b, #b65775, #822111, #a46a21, #aa8831, #076239, #1a764d, #1c4587, #41236d, #83334c #464646, #e7e7e7, #0d3472, #b6cff5, #0d3b44, #98d7e4, #3d188e, #e3d7ff, #711a36, #fbd3e0, #8a1c0a, #f2b2a8, #7a2e0b, #ffc8af, #7a4706, #ffdeb5, #594c05, #fbe983, #684e07, #fdedc1, #0b4f30, #b3efd3, #04502e, #a2dcc1, #c2c2c2, #4986e7, #2da2bb, #b99aff, #994a64, #f691b2, #ff7537, #ffad46, #662e37, #ebdbde, #cca6ac, #094228, #42d692, #16a765

Labels are used to categorize messages and threads within the user's mailbox.

The owner type for the label. User labels are created by the user and can be modified and deleted by the user and can be applied to any message or thread. System labels are internally created and cannot be added, modified, or deleted. System labels may be able to be applied to or removed from messages and threads under some circumstances but this is not guaranteed. For example, users can apply and remove the INBOX and UNREAD labels from messages and threads, but cannot apply or remove the DRAFTS or SENT labels from messages or threads.

The number of unread threads with the label.

The total number of threads with the label.

The display name of the label.

The number of unread messages with the label.

The total number of messages with the label.

The visibility of the label in the message list in the Gmail web interface.

The visibility of the label in the label list in the Gmail web interface.

The immutable ID of the label.

The color to assign to the label. Color is only available for labels that have their type set to user.

The text color of the label, represented as hex string. This field is required in order to set the color of a label. Only the following predefined set of color values are allowed:

000000, #434343, #666666, #999999, #cccccc, #efefef, #f3f3f3, #ffffff, #fb4c2f, #ffad47, #fad165, #16a766, #43d692, #4a86e8, #a479e2, #f691b3, #f6c5be, #ffe6c7, #fef1d1, #b9e4d0, #c6f3de, #c9daf8, #e4d7f5, #fcdee8, #efa093, #ffd6a2, #fce8b3, #89d3b2, #a0eac9, #a4c2f4, #d0bcf1, #fbc8d9, #e66550, #ffbc6b, #fcda83, #44b984, #68dfa9, #6d9eeb, #b694e8, #f7a7c0, #cc3a21, #eaa041, #f2c960, #149e60, #3dc789, #3c78d8, #8e63ce, #e07798, #ac2b16, #cf8933, #d5ae49, #0b804b, #2a9c68, #285bac, #653e9b, #b65775, #822111, #a46a21, #aa8831, #076239, #1a764d, #1c4587, #41236d, #83334c #464646, #e7e7e7, #0d3472, #b6cff5, #0d3b44, #98d7e4, #3d188e, #e3d7ff, #711a36, #fbd3e0, #8a1c0a, #f2b2a8, #7a2e0b, #ffc8af, #7a4706, #ffdeb5, #594c05, #fbe983, #684e07, #fdedc1, #0b4f30, #b3efd3, #04502e, #a2dcc1, #c2c2c2, #4986e7, #2da2bb, #b99aff, #994a64, #f691b2, #ff7537, #ffad46, #662e37, #ebdbde, #cca6ac, #094228, #42d692, #16a765

The background color represented as hex string #RRGGBB (ex #000000). This field is required in order to set the color of a label. Only the following predefined set of color values are allowed:

000000, #434343, #666666, #999999, #cccccc, #efefef, #f3f3f3, #ffffff, #fb4c2f, #ffad47, #fad165, #16a766, #43d692, #4a86e8, #a479e2, #f691b3, #f6c5be, #ffe6c7, #fef1d1, #b9e4d0, #c6f3de, #c9daf8, #e4d7f5, #fcdee8, #efa093, #ffd6a2, #fce8b3, #89d3b2, #a0eac9, #a4c2f4, #d0bcf1, #fbc8d9, #e66550, #ffbc6b, #fcda83, #44b984, #68dfa9, #6d9eeb, #b694e8, #f7a7c0, #cc3a21, #eaa041, #f2c960, #149e60, #3dc789, #3c78d8, #8e63ce, #e07798, #ac2b16, #cf8933, #d5ae49, #0b804b, #2a9c68, #285bac, #653e9b, #b65775, #822111, #a46a21, #aa8831, #076239, #1a764d, #1c4587, #41236d, #83334c #464646, #e7e7e7, #0d3472, #b6cff5, #0d3b44, #98d7e4, #3d188e, #e3d7ff, #711a36, #fbd3e0, #8a1c0a, #f2b2a8, #7a2e0b, #ffc8af, #7a4706, #ffdeb5, #594c05, #fbe983, #684e07, #fdedc1, #0b4f30, #b3efd3, #04502e, #a2dcc1, #c2c2c2, #4986e7, #2da2bb, #b99aff, #994a64, #f691b2, #ff7537, #ffad46, #662e37, #ebdbde, #cca6ac, #094228, #42d692, #16a765

A single MIME message part.

The child MIME message parts of this part. This only applies to container MIME message parts, for example multipart/*. For non- container MIME message part types, such as text/plain, this field is empty. For more information, see RFC 1521.

The immutable ID of the message part.

The MIME type of the message part.

List of headers on this message part. For the top-level message part, representing the entire message payload, it will contain the standard RFC 2822 email headers such as To, From, and Subject.

The filename of the attachment. Only present if this message part represents an attachment.

The message part body for this part, which may be empty for container MIME message parts.

A single MIME message part.

The child MIME message parts of this part. This only applies to container MIME message parts, for example multipart/*. For non- container MIME message part types, such as text/plain, this field is empty. For more information, see RFC 1521.

The immutable ID of the message part.

The MIME type of the message part.

List of headers on this message part. For the top-level message part, representing the entire message payload, it will contain the standard RFC 2822 email headers such as To, From, and Subject.

The filename of the attachment. Only present if this message part represents an attachment.

The message part body for this part, which may be empty for container MIME message parts.

A single MIME message part.

The child MIME message parts of this part. This only applies to container MIME message parts, for example multipart/*. For non- container MIME message part types, such as text/plain, this field is empty. For more information, see RFC 1521.

The immutable ID of the message part.

The MIME type of the message part.

List of headers on this message part. For the top-level message part, representing the entire message payload, it will contain the standard RFC 2822 email headers such as To, From, and Subject.