How to make mailing queue using php’s mail() function

You can write your own wp_mail function that will override the core one and in your own function you can enqueque emails, and then dequeue them and send them with wp-crom events. Managing the queue is not trivial but should be doable.

But the easier path is to use an external service that has an API like mailchimp.

Related Posts:

  1. How Can I Change Default Reply ToEmail
  2. wp_mail not sending emails
  3. WordPress doesn’t work properly with non standard domain names – PHPMailer fails when initialising
  4. WordPress wp_mail function crashing website
  5. wp mail smtp earlier version
  6. How to set SMTP programmatically
  7. Using wp_mail with attachments but no attachments received
  8. How to send an email using wp_mail and using more than one BCC in the header
  9. WordPress “phpmailer_init” not working for me
  10. Check to check if wp_mail is working properly?
  11. Multiple email recipient using wp_mail()
  12. Adding an Attachment to Contact Form Using wp_mail
  13. Using wp_mail() – verify that email was sent?
  14. How to use PHPmailer in a function in WordPress
  15. How to set up gmail SMTP in WordPress
  16. Postman: wp_mail has been declared by another plugin or theme
  17. wp_mail line break not working
  18. Add multiple recipients via BCC on wp_mail()
  19. Change Default wp_mail From, Without Affecting Gravity Forms
  20. Should I use wp_mail or PHP’s mail? [duplicate]
  21. How to use ‘phpmailer_init’ SMTP settings only on certain ‘wp_mail’ actions?
  22. How to setup SMTP for only one specific wp_mail()
  23. User invite email not delivered – related to subdomain?
  24. Send automatic emails to multiple user roles when a custom field is updated in a custom post type
  25. Can you set envelope sender used by wp_mail?
  26. Using wp_mail() function outside of WordPress and through PHP CLI
  27. Unexpected = (equal sign) characters in wp mail
  28. wp_mail isn’t making the from header correctly
  29. How to stop the wp_mail function?
  30. Sending HTML email with attachment with wp_mail()
  31. Need clarification on how to correctly call wp_mail()
  32. WordPress wp_mail() how to add a .GIF
  33. wp_mail() sends wrong From header
  34. Remove from “WordPress” when reciving email (Should I remove filter?)
  35. Using wp_schedule_event to send emails including links
  36. Email all subscribers when i do an action
  37. wp_mail is sending two emails when used after retrieving session data
  38. How do I set wp_mail arguments/manually force wp_mail sending based on the sender’s email address?
  39. Redirect to another page after submission using wp_mail
  40. How to restrict sending email twice in wp_mail
  41. Restrict current user from receiving email using wp_mail
  42. Mask Sender Address in wp_mail() in WordPress [closed]
  43. wp_mail is not sending email if I pass an array of emails
  44. WP mail sent to MS Exchange recipients = occasional email corruption?
  45. wp_mail: An array as $to – multiple emails or single email with all the email ids in it?
  46. How to send bulk messages using wp mail function?
  47. Unable to send custom welcome email after user register
  48. test email is working but not sending email with wp mail [closed]
  49. wp_mail attachment woes!
  50. wp_mail() inside AJAX handler never returns
  51. Emailing passwords: Setup installed on home server using XAMPP
  52. wp_mail not sending when attachment
  53. How can I replace Email addresses with BitMessage Addresses througout wordpress?
  54. Trying to get author’email for sending email from single.php page in wordpress?
  55. wp_mail not sending in test php file
  56. wp_mail sending mail twice!
  57. Using WP_Mail on MacOS 12 (Monterey – M1) [closed]
  58. How dynamically change wp_mail behaviour, sending html or plain text based on conditions?
  59. wp_mail sending old content from post
  60. If/elseif statement within wp_mail function
  61. Sending mails with wp_mail() to multiple recipients using wp_cron and dynamic email body data
  62. WordPress wp_mail function not working, returns false
  63. How to send multiple email to different addresses
  64. How to send language string in email message body
  65. wp_mail strips out the link url from the anchor tag in mail content
  66. wp_mail – using a custom field value for $to
  67. How to disable wp_mail for all users except for admins?
  68. How to send email from contact page without using a plugin
  69. wp_mail ignores the name in From field
  70. wp_mail encode ’ in ’ in subject
  71. wp_mail issue with sending PDF
  72. Wp_mail() function not working in Windows and MAC OS
  73. wp_mail BCC admin
  74. Problem using wp_mail function
  75. How can I format email notification after registration?
  76. Using two different outgoing email services, can it be done?
  77. wp_mail only sends emails to gmail
  78. Sending bulk mail to a certain number of users
  79. Send a email base on a taxonomy term
  80. Contact form with file upload
  81. WP Mail plugin not sending the mail
  82. Mail not working on WordPress site
  83. Cron not sending wp-mail()
  84. phpmailer_init ignored on REST calls
  85. Include content post WordPress – Email notification
  86. Email me when front posting or update post
  87. Multisite – SMTP not working on other network sites
  88. wp_mail sends email twice inside function updated_postmeta
  89. Repeated headers in wp_mail
  90. wp_mail sending emails in triplicate
  91. adding Recipient to wp_email() is not working?
  92. If I connect my own SMTP server to wp_mail, reset password doesn’t works anymore
  93. Change Password URL missing In forgot Password mail
  94. Using wp_mail in functions.php
  95. wp_mail() function doesn’t send email in Ajax mode
  96. wp_mail: Using file_get_contents to include template in message
  97. WP – not sending email
  98. Why does WordPress not send password reset emails from the Administrator Address?
  99. wp_mail sending only once inside foreach loop
  100. Cc header in wp_mail() not working