Class MailApp
Page Summary
MailApp service sends email with complete control over content and unlike GmailApp, it cannot access a user's Gmail inbox.
Scripts using MailApp are less likely to require re-authorization from a user compared to GmailApp scripts.
The
getRemainingDailyQuota()method returns the number of recipients you can still send emails to for the day.The
sendEmail()method has several variations to send email messages with different parameters including recipients, subject, body, and optional arguments like attachments, CC, BCC, HTML body, inline images, sender name, no-reply option, and reply-to address.
Sends email.
This service allows users to send emails with complete control over the content of the email.Unlike GmailApp, MailApp's sole purpose is sending email. MailApp cannot access a user's Gmailinbox.
Changes to scripts written using GmailApp are more likely to trigger a re-authorizationrequest from a user than MailApp scripts.
Methods
| Method | Return type | Brief description |
|---|---|---|
get | Integer | Returns the number of recipients you can send emails to for the rest of the day. |
send | void | Sends an email message. |
send | void | Sends an email message. |
send | void | Sends an email message with optional arguments. |
send | void | Sends an email message. |
Detailed documentation
getRemainingDailyQuota()
Returns the number of recipients you can send emails to for the rest of the day. The returnedvalue is valid for the current execution and might vary between executions.
Quotas are based on the number of email recipients. For specific quota information, seeQuotas for GoogleServices.
constemailQuotaRemaining=MailApp.getRemainingDailyQuota();Logger.log(`Remaining email quota:${emailQuotaRemaining}`);
Return
Integer — The number of emails remaining that the script can send.
Authorization
Scripts that use this method require authorization with one or more of the followingscopes:
https://www.googleapis.com/auth/script.send_mail
sendEmail(message)
Sends an email message. This variation of the method is much more flexible, allowing for manymore options.
// This code fetches the Google and YouTube logos, inlines them in an email// and sends the emailfunctioninlineImage(){constgoogleLogoUrl='https://www.gstatic.com/images/branding/googlelogo/1x/googlelogo_color_74x24dp.png';constyoutubeLogoUrl='https://developers.google.com/youtube/images/YouTube_logo_standard_white.png';constgoogleLogoBlob=UrlFetchApp.fetch(googleLogoUrl).getBlob().setName('googleLogoBlob');constyoutubeLogoBlob=UrlFetchApp.fetch(youtubeLogoUrl).getBlob().setName('youtubeLogoBlob');MailApp.sendEmail({to:'recipient@example.com',subject:'Logos',htmlBody:'inline Google Logo<img src=\'cid:googleLogo\'> images! <br>'+'inline YouTube Logo <img src=\'cid:youtubeLogo\'>',inlineImages:{googleLogo:googleLogoBlob,youtubeLogo:youtubeLogoBlob,},});}
Parameters
| Name | Type | Description |
|---|---|---|
message | Object | a JavaScript object representing an email message |
Advanced parameters
| Name | Type | Description |
|---|---|---|
attachments | Blob | an array of files to send with the email |
bcc | String | a comma-separated list of email addresses to BCC |
body | String | the body of the email |
cc | String | a comma-separated list of email addresses to CC |
html | String | if set, devices capable of rendering HTML will use it instead of the required body argument; you can add an optionalinline field in HTML body if you have inlined images for your email |
inline | Object | a JavaScript object containing a mapping from image key (String) to image data (Blob); this assumes that thehtml parameter is used and contains references to these images in the format<img src="cid:imageKey" /> (see example) |
name | String | the name of the sender of the email. Defaults to the sender's username. |
no | Boolean | true if the email should be sent from a generic no-reply email address to discourage recipients from responding to emails; this option is only possible for Google Workspace accounts, not Gmail users |
reply | String | an email address to use as the default reply-to address (default: the user's email address). Ifno is set totrue,reply is ignored. |
subject | String | the subject of the email |
to | String | the email address of the recipient or a comma-separated list of email addresses to be the recipients |
Authorization
Scripts that use this method require authorization with one or more of the followingscopes:
https://www.googleapis.com/auth/script.send_mail
See also
sendEmail(recipient, subject, body)
Sends an email message.
App .sendEmail('recipient@example.com','TPS reports','Where are the TPS reports?',);
Parameters
| Name | Type | Description |
|---|---|---|
recipient | String | the addresses of the recipients, separated by commas |
subject | String | the subject line |
body | String | the body of the email |
Authorization
Scripts that use this method require authorization with one or more of the followingscopes:
https://www.googleapis.com/auth/script.send_mail
sendEmail(recipient, subject, body, options)
Sends an email message with optional arguments.
// Send an email with two attachments: a file from Google Drive (as a PDF) and// an HTML file.constfile=DriveApp.getFileById('1234567890abcdefghijklmnopqrstuvwxyz');constblob=Utilities.newBlob('Insert any HTML content here','text/html','my_document.html',);MailApp.sendEmail('mike@example.com','Attachment example','Two files are attached.',{name:'Automatic Emailer Script',attachments:[file.getAs(MimeType.PDF),blob],},);
Parameters
| Name | Type | Description |
|---|---|---|
recipient | String | the addresses of the recipients, separated by commas |
subject | String | the subject line |
body | String | the body of the email |
options | Object | a JavaScript object that specifies advanced parameters, as listed below |
Advanced parameters
| Name | Type | Description |
|---|---|---|
attachments | Blob | an array of files to send with the email (see example) |
bcc | String | a comma-separated list of email addresses to BCC |
cc | String | a comma-separated list of email addresses to CC |
html | String | if set, devices capable of rendering HTML will use it instead of the required body argument; you can add an optionalinline field in HTML body if you have inlined images for your email |
inline | Object | a JavaScript object containing a mapping from image key (String) to image data (Blob); this assumes that thehtml parameter is used and contains references to these images in the format<img src="cid:imageKey" /> |
name | String | the name of the sender of the email (default: the user's name) |
no | Boolean | true if the email should be sent from a generic no-reply email address to discourage recipients from responding to emails; this option is only possible for Google Workspace accounts, not Gmail users |
reply | String | an email address to use as the default reply-to address (default: the user's email address) |
Authorization
Scripts that use this method require authorization with one or more of the followingscopes:
https://www.googleapis.com/auth/script.send_mail
See also
sendEmail(to, replyTo, subject, body)
Sends an email message. This method allows a user to easily specify a Reply-To address for thesent message that can differ from the sender.
App .sendEmail('recipient@example.com','replies@example.com','TPS report status','What is the status of those TPS reports?',);
Parameters
| Name | Type | Description |
|---|---|---|
to | String | the addresses of the recipients, separated by commas |
reply | String | the reply-to address |
subject | String | the subject line |
body | String | the body of the email in plain text |
Authorization
Scripts that use this method require authorization with one or more of the followingscopes:
https://www.googleapis.com/auth/script.send_mail
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Last updated 2025-12-11 UTC.