Notification > Email > Console Guide

Mail Delivery

General Mails

Enter recipients, title, body, and attachment to send mails. For the delivery of general mails, you need to enter recipients yourself.

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Select Disable for Enable Template or Not in the Deliver Mails tab. Select General Mails for Mail Type. Mail Delivery: Enter an email address to send. Write in the name format to enter sender name and address. . Scheduled Delivery: Specify the date and time of email delivery. Attached File: Attach files to mail.

  • Up to 10 files can be uploaded, not exceeding 30MB.
  • The total volume of attachment cannot be more than 30MB.
  • Files can be attached up to 30MB, but they may be rejected due to 'Limit Exceeded' or regarded as spams, depending on the mail system.

Title/Body: Enter the title and body of the mail.

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Enter email addresses for Recipients and Cc Recipients.

Advertising Mails

You can send advertising mails.

Notes for Sending Advertising Mails

In accordance with Act on Promotion of Information and Communications Network Utilization and Information Protection, you are obliged to follow the rules as below, to send advertising or promotional mails. [check at Korea Internet & Security Agency]

  1. Send ad mails only to those recipients who explicitly agreed to receive ones. The sender shall be held liable for any conflicts that may arise in violation of it.
  2. Display the (AD) phrase at the beginning of title.
  3. Show sender information, including name, email address, phone number and home address, in the body.
  4. Clearly display guides for recipients to block receiving or withdraw consent to receive promotional mails, and come up with technical means to easily follow their choices.

NHN Cloud shall provide technical means as below to 'Advertising Mails' in compliance of the Act on Promotion of Information and Communications Network Utilization and Information Protection:

  • Insert the (AD) phrase to title.
  • Allow Reject Receiving Ad Mails for recipients.
  • Do not send mails to the mail addresses rejecting ad mails.

Send ad mails in reference of the following:

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  1. The title must include the "(AD)" phrase.
  2. Links to Reject Receiving must be included in Korean/English.
  3. Ad mails are not delivered to the users who are registered to reject ones.

Following keys are provided as part of rejection links:

Key Phrase Example of Usage
EN_BLOCK_RECEIVER_LINK Unsubscription If you no longer wish to receive these emails, please click the ##EN_BLOCK_RECEIVER_LINK##.
BLOCK_RECEIVER_LINK - If you no longer wish to receive these emails, please <a href='##BLOCK_RECEIVER_LINK##' target='_blank'>click here</a>.

Use Templates to Send Mails

You can send mails on a template created in advance.

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  1. To use a template, select Enable for Use Templates.
  2. Click Select a Template.
  3. Select a template created in advance from the Category of Select a Template.
    • On how to create a template, refer to Manage Categories and Templates section below.
  4. Click Apply Template.

Use Tags to Send Mails

You can send mails by using tags. For more details on tags, refer to Use Tags to Send in Overview.

Select Disable for Enable Template or Not in the Deliver Mails tab and select General Mails for Mail Type.

  • Mail Delivery: Enter an email address to send. Write in the name format to enter sender name and address. .
  • Scheduled Delivery: Specify the date and time of email delivery.
  • Attached File: Attach files to mail.
    • Up to 10 files can be uploaded, not exceeding 30MB.
    • The total volume of attachment cannot be more than 30MB.
  • Title/Body: Enter the title and body of the mail.

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  1. Select Tag Delivery at the bottom of the page and click Select Tags.
    • To add tags, please refer to Manage Tags.
  2. Select tags on Select Tags screen.
  3. Click Apply Selectively.
  4. You can select up to four tags.
    • You can apply AND, OR conditions to many tags selected.
      • AND: The destination is recipients who satisfy all the tags.
      • OR: The destination is recipients who satisfy one or more of the many tags.

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Click Schedule Delivery at the bottom right of the mail body. On the Schedule Delivery window, click your choice.

  • Confirm and Process: Check mail address of each recipient and body in the Retreive Tagged Mail Delivery tab before sending mails. Unless delivery is requested within 7 days after registration, data may be deleted and it may not be properly sent (not supported for scheduled delivery).
  • Immediate Delivery: Send mails immediately without checking receiving information. You can find delivery result in the Query Tagged Mail Delivery tab.

Upload files to Send Mass Mails

You can use files to send mass mails.

Select Not Use for Template Use in the Send Mails tab, and select General Mails for Mail Type.

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  1. Enter mail content.
    • Mail Delivery: Enter an email address to send. Write in the name format to enter sender name and address.
    • Scheduled Delivery: Specify the date and time of email delivery.
    • Attached File: Attach files to mail.
      • Up to 10 files can be uploaded, not exceeding 30MB.
      • The total volume of attachment cannot be more than 30MB.
    • Title/Body: Enter the title and body of the mail. If the title and body of mail is entered in the ##replacement key##format, the mail can be replaced with user specified data. For instance, enter ##name## in the user name, and it is replaced with a user specified name, such as 'Hana Oh' before sent.
  2. Go to Mass Delivery at the bottom and click Download Templates.
  3. Templates are available either in CSV or Excel.

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Enter replacement data in the template file, such as recipient's mail address and recipient name.

  1. Click Upload Recipient File to upload files.
    • File containing template data can be uploaded with 10 thousand persons, up to 3MB.
    • Any error in template data will be shown. Please check and upload it with correct template data.
    • The total number (no more than 10) with detail information shows.
    • Error Types
      • When the receive_mail_address row does not exist: The receive_mail_address row is for recipient's mail address and it's a required field.
      • When there is no entered data available
      • When recipient's mail address or replacement data is missing
  2. Click Schedule Delivery at the bottom right of the mail page.
  3. On the Schedule Delivery window, click your choice.
    • Check and Send: Check mail address of each recipient and body in the Retrieve Tagged Mail Delivery tab before sending mails. Unless delivery is requested within 7 days after registration, data may be deleted and it may not be properly sent (not supported for scheduled delivery).
    • Immediate Delivery: Send mails immediately without checking receiving information. You can find delivery result in the Query Tagged Mail Delivery tab.

Query of Mails

Retrieve by Mail Request

You can query sent mails by Date and Time of Delivery, Date and Time of Receipt, Template, and Delivery Status on Retrieve by Mail Request.

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Click a mail on the list to check its details.

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Retrieve Bulk Mail Delivery

In the Retrieve Bulk Mail Delivery tab, you can retrieve scheduled mass mail delivery or cancel delivery.

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  • Click Send to send mails: may take quite a while, depending on the number of deliveries.
  • Click Cancel to cancel sending mails.

Status of Bulk Mail Delivery

  • Waiting: Recipient file data is still not read.
  • Preparing Delivery: Recipient file data is being uploaded.
  • Preparing Delivery Completed: Sending mail is completely prepared. Select a schedule (a column on the list) and check mail delivery details per recipient on the list at the bottom.
  • Ready for Delivery: It is ready to send mails.
  • Delivering: Mail is now on the delivery. Select a schedule (a column on the list) and check the delivery processing rate.
  • Delivery Completed: Delivery has been normally completed.
  • Delivery Failed: Error occurred during delivery. To check delivery status, query received mails.
  • Delivery Cancelled: User has cancelled sending mails.

Retrieve Mail Delivery per Recipient

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  1. Select a bulk mail delivery record (a row on the list).
  2. A detailed list of mail delivery per recipient will be shown at the bottom tab. Click on View Details.
  3. You can check whether the body content has been successfully replaced by the replacement key.

Retrieve Tagged Mail Delivery

  • In the Retrieve Tagged Mail Delivery tab, you can retrieve scheduled tagged mail delivery or cancel delivery.

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  • Click Send to send mails: may take quite a while, depending on the number of deliveries.
  • Click Cancel to cancel sending mails.

Status of Tagged Mails Delivery

  • Waiting: Recipient file data is still not read.
  • Preparing Delivery: Recipient file data is being uploaded.
  • Preparing Delivery Completed: Sending mail is completely prepared. Select a schedule (a column on the list) and check mail delivery details per recipient on the list at the bottom.
  • Ready for Delivery: It is ready to send mails.
  • Delivering: Mail is now on the delivery. Select a schedule (a column on the list) and check the delivery processing rate.
  • Delivery Completed: Delivery has been normally completed.
  • Delivery Failed: Error occurred during delivery. To check delivery status, query received mails.
  • Delivery Cancelled: User has cancelled sending mails.

Retrieve Mail Delivery per Recipient

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Select a tagged mail schedule (a column on the list) to query the list of mail deliver per recipient at the bottom.

Manage Categories and Templates

Categories

You can create categories to sort templates for mail delivery.

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  1. Select a category from Categories on the left.
  2. Click Add Cetegory.
    • Please make sure that the category is selected first.
  3. When Add Category window pops up, complete the form.
  4. Click Add.

To modify category, select a category and click Modify. When Modify Category window pops up, modify the content and click Modify.

Templates

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  1. To add a template, select a category and click Add Templates.
  2. Complete the form with frequently used items.
  3. Click Add.

To modify a template, select a template, modify it, and then click Modify.

Mail Domain Management

Delivery mail domains can be managed from the Mail Domain Management tab.
This feature is useful for personal or company-owned domains which can be prevented from third-party abuses.

  • This stage is not a must to enable email services.
  • It is unavailable for non-personal or non-company owned domains.
    • Cannot use domains of email account providers, such as Daum, Naver, or Google.

Register Mail Domains

Click Register Mail Domains to register domains for delivery mails.
Only root domains can be registered.

Verify Mail Domains

Clic Verify to verify domain ownership.
Register a token issued from domain registration at TXT record, and click Verify.

  • If "toast-domain-verification={token}" does not exist nor match, verification fails.
  • It may take time to transmit changes after TXT record is registered at domain.

Protect Mail Domains

Click Protect to protect domains.
With this, following can be applied.

  • Protected domains can be enabled for verified projects only.
    • When a same domain is verfied by many projects, applying protection to only one project allows authenticated projects to use all domains.
    • e.g.) Verify "toast.com" for email services of Projects A and B, and protect Project A.
      • "toast.com" can serve as delivery address for Projects A and B only
      • For Project C, "toast.com" is not available as delivery address since it is not verified for the project.

Share Mail Domains

Click Share > Setting to share domains.
Main features are as follows.

  • Query project with verified domains
    • Provide the list of NHN Cloud projects completed with verification for specific domains.
  • Share domain with other projects
    • No need to repeat the verification process, when verifying same domain for many projects.
    • After verified from a project, domains can be shared by entering appkey for other projects' email services.

Register Sub-domains

Click Main Sub-domain > Setting to register sub-domains.
Only registered root domain's sub-domains can be registered.
Registered sub-domains can be used as Custom Header to send mails.

  • Custom Headers available for Sub-domains

    • Header Name: X-TC-ENVELOPE-FROM
    • Header Value: Sub-domain
    • Main features are as follows:
      • To inspect SPF records for recipient's mail service
        • e.g.) When mail delivery is requested for Recipient: test@toast.com, X-TC-ENVELOPE-FROM: test@cs.toast.com
          • Inspect SPF records with "cs.toast.com", from recipient's mail service
      • To send returned mails for recipient's mail service
        • e.g.) When mail delivery is requested for Recipient: test@toast.com, X-TC-ENVELOPE-FROM: test@cs.toast.com
          • Send returned mail to test@cs.toast.com, from recipient's mail service
  • For more details, see the guide for Custom header.

DomainKeys Identified Mail (DKIM)

DKIM, or DomainKeys Identified Mail refers to a technique by which the receiver can check if the sender address or email is forged.
To enable DKIM, click DKIM > Setting.
Its main features are like follows:

  • Register and Authenticate DKIM TXT Records
    • Click Authenticate DKIM.
    • Register issued TXT record onto TXT Record of domain, and click Authenticate.
    • If "v=DKIM1;k=rsa;p={issued RSA publicKey value}" of domain's TXT record does not exist or is not consistent, authentication fails.
    • It might take time to register TXT record to domain and transmit changes.
  • Enable or Disable DKIM

    • Click DKIM Features.
    • Press Enable or Disable to control DKIM features.
  • You may do like below to check if DKIM works properly.

    • Authenticate and enable DKIM for a particular sender's domain
    • Send email to a particular domain
    • Read the original of a receiving email
    • Check if the Authentication-Results header includes 'dkim=pass'
      • Each email service provider may provide different header for dkim=pass.

Tag Management

You can create, modify, or delete tags applied to send mails in the Manage Tags tab.
Click a tag and the list of UIDs registered to the tag can be retrieved.
태그는 Notification 서비스 전역으로 사용됩니다. - 태그는 최대 2,048개까지 생성할 수 있습니다. - 하나의 UID에 태그를 16개까지 추가할 수 있습니다.

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When there is no registered tag, click Register Tags, enter Tag Name on the Register/Modify Tags window, and then click Register.

To register UIDs to a tag, select a tag from the list of registered tags and click Register UIDs. Enter an UID on the Register UIDs window and click Register.

Up to 1,000 UIDs can be registered at once, for a tag.

UID Management

Go to the Manage UIDs tab to manage UIDs and mail addresses.

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UIDs, registered to a tag, can be used to easily send mails to multiple recipients.

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  1. Click Register UIDs.
  2. Click Download Templates. You can enter multiple UIDs and mail address in CSV format.
    • Download a template, and enter UID on the first row, and mail address on the second row.
  3. Save the file and click Upload UID Files to upload the file.
  4. Click Register.

Manage Call Rejects

You can manage rejecting users on the Manage Call Rejcts tab.

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You may search for users who have unsubscribed so far, and register or delete rejections.

Register Rejections

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  1. Click Register Rejections.
  2. Enter unsubscription mail address in the Register Rejections window.
    • Click Add to register up to 10 persons.
  3. Click Register.

Registration with Template Files

You can upload rejection files in CSV, text (.txt), or excel (.xlsx).

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  1. Select Batch Registration of Mail Addresses to upload a file.
  2. Complete an upload and click Register.
    • When they're normally uploaded, the message will show A total of n mail addresses are found.

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When it is fully uploaded, you can check the list on the Manage Call Rejects tab

Delete Rejections

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  1. Select email addresses to delete.
  2. Click Delete Rejections.
  3. Check the message in the Undo Rejection window and click Yes.

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When it is completely deleted, you can check it on the Manage Call Rejects tab.

Retrieve Statistics

Check delivery statistics on the Retrieve Statistics tab. You can retrieve by conditions, such as period, statistical type (date, time, or day), mail type (general or mass), or template.

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Guide for Notice of Personal Information Assignor

When the Customer uses NHN Cloud > Email Service, assignment of personal information between the Customer and the Company arises, and the assignee, the Customer, is obliged to disclose the status (assignor and content of business) of his assignment of personal information to the Company, through the personal information handling policy, in accordance with Act on Promotion of Information and Communications Network Utilization and Information Protection. Accordingly, the Company may provide guidelines as below for the Customer, to abide by relevant regulations in the use of NHN Cloud Email Service and not to be adversely affected for not disclosing his assignment status:

(Example)

[Notice of Personal Information Assignor] To use NHN Cloud Email Service, make sure the following is displayed for 'Personal Information Handling Policy' > Assignment Status of the Customer.

Assignor: NHN Cloud Corporation Content of Business: Send emails in lieu of customers

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