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lines changed Original file line number Diff line number Diff line change @@ -120,6 +120,39 @@ properties:
120120 type : >-
121121 <xref uid="outlook!Office.MailboxEnums.AttachmentType:enum" /> |
122122 string
123+ - name : contentId
124+ uid : outlook!Office.AttachmentDetailsCompose#contentId:member
125+ package : outlook!
126+ fullName : contentId
127+ summary : Gets the content identifier of an inline attachment.
128+ remarks : >-
129+ **Important**:
130+
131+
132+ - The `contentId` property is only supported in Outlook on the web and the
133+ new Outlook on Windows.
134+
135+
136+ - Starting November 15, 2025, changes to how inline images are represented
137+ in the HTML body of Outlook emails in Outlook on the web and the new
138+ Outlook on Windows will begin rolling out to production users. Previously,
139+ the attachment ID of the image appeared in the `src` attribute of the
140+ applicable `<img>` element. After the change, the image will be
141+ represented by a content ID (`cid`<!-- -->) in the `src` attribute
142+ instead. As a result, you'll need to update your add-in's parsing logic if
143+ you parse the attachment ID from the HTML editor or get the Base64 value
144+ of the image from the URL in the `src` attribute. For more information,
145+ see [Changes to inline image representation in Outlook on the web and new
146+ Outlook for
147+ Windows](https://devblogs.microsoft.com/microsoft365dev/changes-to-inline-images-in-outlook)<!--
148+ -->.
149+
150+ isPreview : false
151+ isDeprecated : false
152+ syntax :
153+ content : ' contentId: string;'
154+ return :
155+ type : string
123156 - name : id
124157 uid : outlook!Office.AttachmentDetailsCompose#id:member
125158 package : outlook!
Original file line number Diff line number Diff line change @@ -120,6 +120,42 @@ properties:
120120 type : >-
121121 <xref uid="outlook!Office.MailboxEnums.AttachmentType:enum" /> |
122122 string
123+ - name : contentId
124+ uid : outlook!Office.AttachmentDetailsCompose#contentId:member
125+ package : outlook!
126+ fullName : contentId
127+ summary : >-
128+ Gets the content identifier of an inline attachment.
129+
130+
131+ **Important**:
132+
133+
134+ - The `contentId` property is only supported in Outlook on the web and the
135+ new Outlook on Windows.
136+
137+
138+ - Starting November 15, 2025, changes to how inline images are represented
139+ in the HTML body of Outlook emails in Outlook on the web and the new
140+ Outlook on Windows will begin rolling out to production users. Previously,
141+ the attachment ID of the image appeared in the `src` attribute of the
142+ applicable `<img>` element. After the change, the image will be
143+ represented by a content ID (`cid`<!-- -->) in the `src` attribute
144+ instead. As a result, you'll need to update your add-in's parsing logic if
145+ you parse the attachment ID from the HTML editor or get the Base64 value
146+ of the image from the URL in the `src` attribute. For more information,
147+ see [Changes to inline image representation in Outlook on the web and new
148+ Outlook for
149+ Windows](https://devblogs.microsoft.com/microsoft365dev/changes-to-inline-images-in-outlook)<!--
150+ -->.
151+ remarks : ' '
152+
153+ isPreview : false
154+ isDeprecated : false
155+ syntax :
156+ content : ' contentId: string;'
157+ return :
158+ type : string
123159 - name : id
124160 uid : outlook!Office.AttachmentDetailsCompose#id:member
125161 package : outlook!
Original file line number Diff line number Diff line change @@ -120,6 +120,42 @@ properties:
120120 type : >-
121121 <xref uid="outlook!Office.MailboxEnums.AttachmentType:enum" /> |
122122 string
123+ - name : contentId
124+ uid : outlook!Office.AttachmentDetailsCompose#contentId:member
125+ package : outlook!
126+ fullName : contentId
127+ summary : >-
128+ Gets the content identifier of an inline attachment.
129+
130+
131+ **Important**:
132+
133+
134+ - The `contentId` property is only supported in Outlook on the web and the
135+ new Outlook on Windows.
136+
137+
138+ - Starting November 15, 2025, changes to how inline images are represented
139+ in the HTML body of Outlook emails in Outlook on the web and the new
140+ Outlook on Windows will begin rolling out to production users. Previously,
141+ the attachment ID of the image appeared in the `src` attribute of the
142+ applicable `<img>` element. After the change, the image will be
143+ represented by a content ID (`cid`<!-- -->) in the `src` attribute
144+ instead. As a result, you'll need to update your add-in's parsing logic if
145+ you parse the attachment ID from the HTML editor or get the Base64 value
146+ of the image from the URL in the `src` attribute. For more information,
147+ see [Changes to inline image representation in Outlook on the web and new
148+ Outlook for
149+ Windows](https://devblogs.microsoft.com/microsoft365dev/changes-to-inline-images-in-outlook)<!--
150+ -->.
151+ remarks : ' '
152+
153+ isPreview : false
154+ isDeprecated : false
155+ syntax :
156+ content : ' contentId: string;'
157+ return :
158+ type : string
123159 - name : id
124160 uid : outlook!Office.AttachmentDetailsCompose#id:member
125161 package : outlook!
Original file line number Diff line number Diff line change @@ -120,6 +120,42 @@ properties:
120120 type : >-
121121 <xref uid="outlook!Office.MailboxEnums.AttachmentType:enum" /> |
122122 string
123+ - name : contentId
124+ uid : outlook!Office.AttachmentDetailsCompose#contentId:member
125+ package : outlook!
126+ fullName : contentId
127+ summary : >-
128+ Gets the content identifier of an inline attachment.
129+
130+
131+ **Important**:
132+
133+
134+ - The `contentId` property is only supported in Outlook on the web and the
135+ new Outlook on Windows.
136+
137+
138+ - Starting November 15, 2025, changes to how inline images are represented
139+ in the HTML body of Outlook emails in Outlook on the web and the new
140+ Outlook on Windows will begin rolling out to production users. Previously,
141+ the attachment ID of the image appeared in the `src` attribute of the
142+ applicable `<img>` element. After the change, the image will be
143+ represented by a content ID (`cid`<!-- -->) in the `src` attribute
144+ instead. As a result, you'll need to update your add-in's parsing logic if
145+ you parse the attachment ID from the HTML editor or get the Base64 value
146+ of the image from the URL in the `src` attribute. For more information,
147+ see [Changes to inline image representation in Outlook on the web and new
148+ Outlook for
149+ Windows](https://devblogs.microsoft.com/microsoft365dev/changes-to-inline-images-in-outlook)<!--
150+ -->.
151+ remarks : ' '
152+
153+ isPreview : false
154+ isDeprecated : false
155+ syntax :
156+ content : ' contentId: string;'
157+ return :
158+ type : string
123159 - name : id
124160 uid : outlook!Office.AttachmentDetailsCompose#id:member
125161 package : outlook!
Original file line number Diff line number Diff line change @@ -120,6 +120,42 @@ properties:
120120 type : >-
121121 <xref uid="outlook!Office.MailboxEnums.AttachmentType:enum" /> |
122122 string
123+ - name : contentId
124+ uid : outlook!Office.AttachmentDetailsCompose#contentId:member
125+ package : outlook!
126+ fullName : contentId
127+ summary : >-
128+ Gets the content identifier of an inline attachment.
129+
130+
131+ **Important**:
132+
133+
134+ - The `contentId` property is only supported in Outlook on the web and the
135+ new Outlook on Windows.
136+
137+
138+ - Starting November 15, 2025, changes to how inline images are represented
139+ in the HTML body of Outlook emails in Outlook on the web and the new
140+ Outlook on Windows will begin rolling out to production users. Previously,
141+ the attachment ID of the image appeared in the `src` attribute of the
142+ applicable `<img>` element. After the change, the image will be
143+ represented by a content ID (`cid`<!-- -->) in the `src` attribute
144+ instead. As a result, you'll need to update your add-in's parsing logic if
145+ you parse the attachment ID from the HTML editor or get the Base64 value
146+ of the image from the URL in the `src` attribute. For more information,
147+ see [Changes to inline image representation in Outlook on the web and new
148+ Outlook for
149+ Windows](https://devblogs.microsoft.com/microsoft365dev/changes-to-inline-images-in-outlook)<!--
150+ -->.
151+ remarks : ' '
152+
153+ isPreview : false
154+ isDeprecated : false
155+ syntax :
156+ content : ' contentId: string;'
157+ return :
158+ type : string
123159 - name : id
124160 uid : outlook!Office.AttachmentDetailsCompose#id:member
125161 package : outlook!
Original file line number Diff line number Diff line change @@ -120,6 +120,42 @@ properties:
120120 type : >-
121121 <xref uid="outlook!Office.MailboxEnums.AttachmentType:enum" /> |
122122 string
123+ - name : contentId
124+ uid : outlook!Office.AttachmentDetailsCompose#contentId:member
125+ package : outlook!
126+ fullName : contentId
127+ summary : >-
128+ Gets the content identifier of an inline attachment.
129+
130+
131+ **Important**:
132+
133+
134+ - The `contentId` property is only supported in Outlook on the web and the
135+ new Outlook on Windows.
136+
137+
138+ - Starting November 15, 2025, changes to how inline images are represented
139+ in the HTML body of Outlook emails in Outlook on the web and the new
140+ Outlook on Windows will begin rolling out to production users. Previously,
141+ the attachment ID of the image appeared in the `src` attribute of the
142+ applicable `<img>` element. After the change, the image will be
143+ represented by a content ID (`cid`<!-- -->) in the `src` attribute
144+ instead. As a result, you'll need to update your add-in's parsing logic if
145+ you parse the attachment ID from the HTML editor or get the Base64 value
146+ of the image from the URL in the `src` attribute. For more information,
147+ see [Changes to inline image representation in Outlook on the web and new
148+ Outlook for
149+ Windows](https://devblogs.microsoft.com/microsoft365dev/changes-to-inline-images-in-outlook)<!--
150+ -->.
151+ remarks : ' '
152+
153+ isPreview : false
154+ isDeprecated : false
155+ syntax :
156+ content : ' contentId: string;'
157+ return :
158+ type : string
123159 - name : id
124160 uid : outlook!Office.AttachmentDetailsCompose#id:member
125161 package : outlook!
Original file line number Diff line number Diff line change @@ -120,6 +120,42 @@ properties:
120120 type : >-
121121 <xref uid="outlook!Office.MailboxEnums.AttachmentType:enum" /> |
122122 string
123+ - name : contentId
124+ uid : outlook!Office.AttachmentDetailsCompose#contentId:member
125+ package : outlook!
126+ fullName : contentId
127+ summary : >-
128+ Gets the content identifier of an inline attachment.
129+
130+
131+ **Important**:
132+
133+
134+ - The `contentId` property is only supported in Outlook on the web and the
135+ new Outlook on Windows.
136+
137+
138+ - Starting November 15, 2025, changes to how inline images are represented
139+ in the HTML body of Outlook emails in Outlook on the web and the new
140+ Outlook on Windows will begin rolling out to production users. Previously,
141+ the attachment ID of the image appeared in the `src` attribute of the
142+ applicable `<img>` element. After the change, the image will be
143+ represented by a content ID (`cid`<!-- -->) in the `src` attribute
144+ instead. As a result, you'll need to update your add-in's parsing logic if
145+ you parse the attachment ID from the HTML editor or get the Base64 value
146+ of the image from the URL in the `src` attribute. For more information,
147+ see [Changes to inline image representation in Outlook on the web and new
148+ Outlook for
149+ Windows](https://devblogs.microsoft.com/microsoft365dev/changes-to-inline-images-in-outlook)<!--
150+ -->.
151+ remarks : ' '
152+
153+ isPreview : false
154+ isDeprecated : false
155+ syntax :
156+ content : ' contentId: string;'
157+ return :
158+ type : string
123159 - name : id
124160 uid : outlook!Office.AttachmentDetailsCompose#id:member
125161 package : outlook!
Original file line number Diff line number Diff line change @@ -120,6 +120,42 @@ properties:
120120 type : >-
121121 <xref uid="outlook!Office.MailboxEnums.AttachmentType:enum" /> |
122122 string
123+ - name : contentId
124+ uid : outlook!Office.AttachmentDetailsCompose#contentId:member
125+ package : outlook!
126+ fullName : contentId
127+ summary : >-
128+ Gets the content identifier of an inline attachment.
129+
130+
131+ **Important**:
132+
133+
134+ - The `contentId` property is only supported in Outlook on the web and the
135+ new Outlook on Windows.
136+
137+
138+ - Starting November 15, 2025, changes to how inline images are represented
139+ in the HTML body of Outlook emails in Outlook on the web and the new
140+ Outlook on Windows will begin rolling out to production users. Previously,
141+ the attachment ID of the image appeared in the `src` attribute of the
142+ applicable `<img>` element. After the change, the image will be
143+ represented by a content ID (`cid`<!-- -->) in the `src` attribute
144+ instead. As a result, you'll need to update your add-in's parsing logic if
145+ you parse the attachment ID from the HTML editor or get the Base64 value
146+ of the image from the URL in the `src` attribute. For more information,
147+ see [Changes to inline image representation in Outlook on the web and new
148+ Outlook for
149+ Windows](https://devblogs.microsoft.com/microsoft365dev/changes-to-inline-images-in-outlook)<!--
150+ -->.
151+ remarks : ' '
152+
153+ isPreview : false
154+ isDeprecated : false
155+ syntax :
156+ content : ' contentId: string;'
157+ return :
158+ type : string
123159 - name : id
124160 uid : outlook!Office.AttachmentDetailsCompose#id:member
125161 package : outlook!
Original file line number Diff line number Diff line change @@ -120,6 +120,42 @@ properties:
120120 type : >-
121121 <xref uid="outlook!Office.MailboxEnums.AttachmentType:enum" /> |
122122 string
123+ - name : contentId
124+ uid : outlook!Office.AttachmentDetailsCompose#contentId:member
125+ package : outlook!
126+ fullName : contentId
127+ summary : >-
128+ Gets the content identifier of an inline attachment.
129+
130+
131+ **Important**:
132+
133+
134+ - The `contentId` property is only supported in Outlook on the web and the
135+ new Outlook on Windows.
136+
137+
138+ - Starting November 15, 2025, changes to how inline images are represented
139+ in the HTML body of Outlook emails in Outlook on the web and the new
140+ Outlook on Windows will begin rolling out to production users. Previously,
141+ the attachment ID of the image appeared in the `src` attribute of the
142+ applicable `<img>` element. After the change, the image will be
143+ represented by a content ID (`cid`<!-- -->) in the `src` attribute
144+ instead. As a result, you'll need to update your add-in's parsing logic if
145+ you parse the attachment ID from the HTML editor or get the Base64 value
146+ of the image from the URL in the `src` attribute. For more information,
147+ see [Changes to inline image representation in Outlook on the web and new
148+ Outlook for
149+ Windows](https://devblogs.microsoft.com/microsoft365dev/changes-to-inline-images-in-outlook)<!--
150+ -->.
151+ remarks : ' '
152+
153+ isPreview : false
154+ isDeprecated : false
155+ syntax :
156+ content : ' contentId: string;'
157+ return :
158+ type : string
123159 - name : id
124160 uid : outlook!Office.AttachmentDetailsCompose#id:member
125161 package : outlook!
Original file line number Diff line number Diff line change 2525| [ AttachmentContent] ( /javascript/api/outlook/office.attachmentcontent ) | [ content] ( /javascript/api/outlook/office.attachmentcontent#outlook-office-attachmentcontent-content-member ) | The content of an attachment as a string.|
2626|| [ format] ( /javascript/api/outlook/office.attachmentcontent#outlook-office-attachmentcontent-format-member ) | The string format to use for an attachment's content.|
2727| [ AttachmentDetailsCompose] ( /javascript/api/outlook/office.attachmentdetailscompose ) | [ attachmentType] ( /javascript/api/outlook/office.attachmentdetailscompose#outlook-office-attachmentdetailscompose-attachmenttype-member ) | Gets a value that indicates the attachment's type.|
28+ || [ contentId] ( /javascript/api/outlook/office.attachmentdetailscompose#outlook-office-attachmentdetailscompose-contentid-member ) | Gets the content identifier of an inline attachment.|
2829|| [ id] ( /javascript/api/outlook/office.attachmentdetailscompose#outlook-office-attachmentdetailscompose-id-member ) | Gets the index of the attachment.|
2930|| [ isInline] ( /javascript/api/outlook/office.attachmentdetailscompose#outlook-office-attachmentdetailscompose-isinline-member ) | Gets a value that indicates whether the attachment appears as an image in the body of the item instead of in the attachment list.|
3031|| [ name] ( /javascript/api/outlook/office.attachmentdetailscompose#outlook-office-attachmentdetailscompose-name-member ) | Gets the name of the attachment.|
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