{"id":5115,"date":"2026-08-30T07:00:36","date_gmt":"2026-08-29T22:00:36","guid":{"rendered":"https:\/\/donguri3.net\/server-tech\/gmail-to-imessage-trigger-survey-2\/"},"modified":"2026-08-30T07:00:37","modified_gmt":"2026-08-29T22:00:37","slug":"gmail-to-imessage-trigger-survey","status":"publish","type":"post","link":"https:\/\/donguri3.net\/en\/compare-tips\/iphone-ios-shortcut\/gmail-to-imessage-trigger-survey\/","title":{"rendered":"How to Receive Notifications in the iPhone Messages App Triggered by Gmail [Investigation Phase]"},"content":{"rendered":"<p>I recently signed up for the car-sharing service &quot;Times Car&quot; (formerly Times Car Share), and one thing bothered me while using it.<br \/>When you&#8217;re on a waiting list for a cancelled or returned vehicle, <strong>notifications for available cars arrive via email<\/strong>\u2014but <strong>it&#8217;s easy to miss emails<\/strong>.<br \/>Even when a car becomes available, I often couldn&#8217;t react quickly enough and someone else would snap it up.<\/p>\n<p>&quot;Wouldn&#8217;t it be much faster if I could get instant notifications on my smartphone, just like an SMS?&quot;<br \/>That thought was what sparked my investigation this time.<\/p>\n<p>There are many everyday situations where you want to know immediately when an email from a specific sender or with a specific subject arrives. For example:<\/p>\n<ul>\n<li>Wanting to know instantly about error emails from a server<\/li>\n<li>Not wanting to miss messages from family or a boss<\/li>\n<li>Wanting to receive notification emails from specific services just like SMS<\/li>\n<\/ul>\n<p>To address these needs, I arrived at the idea of using <strong>iPhone automation triggered by Gmail receipt to receive notifications in the iPhone &quot;Messages&quot; app<\/strong>.<br \/>This article serves as the &quot;Investigation Phase&quot; summarizing <strong>what kind of technical methods are available and how to achieve it for free<\/strong>.<\/p>\n<hr \/>\n<h2>What I Want to Achieve: Gmail \u2192 iPhone Messages App<\/h2>\n<p>The &quot;Messages app&quot; referred to here is the standard app built into iOS that displays the following types of communication:<\/p>\n<ul>\n<li>SMS (Short Message Service addressed to a phone number)<\/li>\n<li>MMS (Carrier email, etc.)<\/li>\n<li>iMessage (Apple-proprietary communication addressed to an Apple ID or phone number)<\/li>\n<\/ul>\n<p>The goal is to have <strong>notifications arrive automatically in this app whenever a specific email is received in Gmail<\/strong>.<\/p>\n<hr \/>\n<h2>Investigation Result \u2460: Representative Methods for Email-to-SMS Notifications<\/h2>\n<h3>Method A: Gmail \u2192 Carrier Email (@docomo.ne.jp, etc.)<\/h3>\n<p>Japanese mobile carriers provide features that treat email addresses almost like SMS. For example:<\/p>\n<table class=\"w-fit min-w-(--thread-content-width)\">\n<thead>\n<tr>\n<th>Carrier<\/th>\n<th>Address Example<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Docomo<\/td>\n<td><a class=\"cursor-pointer\" rel=\"noopener\">xxxxx@docomo.ne.jp<\/a><\/td>\n<\/tr>\n<tr>\n<td>au<\/td>\n<td><a class=\"cursor-pointer\" rel=\"noopener\">xxxxx@ezweb.ne.jp<\/a>, @au.com<\/td>\n<\/tr>\n<tr>\n<td>SoftBank<\/td>\n<td><a class=\"cursor-pointer\" rel=\"noopener\">xxxxx@softbank.ne.jp<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>If you send emails from Gmail to these addresses, notifications will arrive in your Messages app looking like SMS.<br \/><strong>While it&#8217;s actually carrier email rather than true SMS, the notification appearance and behavior are quite similar.<\/strong><\/p>\n<p><strong>Pros:<\/strong><\/p>\n<ul>\n<li>Easy to set up<\/li>\n<li>Instant notifications<\/li>\n<li>Completely free<\/li>\n<\/ul>\n<p><strong>Cons:<\/strong><\/p>\n<ul>\n<li>Requires a carrier email subscription<\/li>\n<li>May get caught in spam filters<\/li>\n<li>Long messages may get cut off<\/li>\n<\/ul>\n<hr \/>\n<h2>Investigation Result \u2461: Sending SMS Using APIs (Twilio, etc.)<\/h2>\n<p>By using an SMS API service like Twilio, you can send <strong>real SMS<\/strong> to your iPhone triggered by Gmail receipts.<br \/>Integrating with Gmail would require IFTTT, Google Apps Script, or a custom script.<\/p>\n<p><strong>Pros:<\/strong><\/p>\n<ul>\n<li>Real SMS (carrier-independent)<\/li>\n<li>Guaranteed delivery to the iPhone Messages app<\/li>\n<li>Flexible sending based on conditions<\/li>\n<\/ul>\n<p><strong>Cons:<\/strong><\/p>\n<ul>\n<li>Twilio is a paid service ($15 free credit available for first-time users)<\/li>\n<li>Effort required for phone number registration and API configuration<\/li>\n<\/ul>\n<hr \/>\n<h2>Investigation Result \u2462: Sending iMessage via Native Apple Mechanisms<\/h2>\n<p>This method involves <strong>linking a Mac and an iPhone via iCloud, sending an iMessage from the Mac triggered by Gmail, and receiving it on the iPhone<\/strong>.<\/p>\n<h3>Configuration Overview:<\/h3>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">Gmail received (specific conditions)\n\u2193\nTrigger executed (on Mac)\n\u2193\nSend iMessage via Apple Shortcuts or AppleScript\n\u2193\nReceived in iPhone Messages app<\/pre>\n<p>This method <strong>can be constructed using purely native Apple mechanisms, and as long as they are synced via iCloud, it works even when you are away from your home LAN<\/strong>.<\/p>\n<p><strong>Required Prerequisites:<\/strong><\/p>\n<ul>\n<li>Mac and iPhone logged into the same Apple ID<\/li>\n<li>iCloud Drive, Messages, and Shortcuts syncing enabled<\/li>\n<li>Mac powered on and online continuously<\/li>\n<li>iMessage in a state where it can send messages from the Mac<\/li>\n<\/ul>\n<h2>Investigation Result \u2463: Completing iMessage Delivery Entirely on the iPhone<\/h2>\n<p>As an important point discovered during the investigation, it turns out that you can build the action &quot;send an iMessage notification when a specific email is received&quot; <strong>entirely on a standalone iPhone using the automation features of the iPhone &quot;Shortcuts&quot; app<\/strong>.<\/p>\n<p>In other words, <strong>you don&#8217;t even need a Mac; everything can be completed using just an iPhone linked with Gmail<\/strong>.<\/p>\n<h3>What Verification Revealed:<\/h3>\n<ul>\n<li><strong>Email app automation triggers<\/strong> can specify conditions based on &quot;specific sender,&quot; &quot;subject,&quot; and &quot;account&quot;<\/li>\n<li><strong>Send iMessage<\/strong> or <strong>Notification<\/strong> can be selected under &quot;Actions&quot;<\/li>\n<li>Automations can be put together in simple steps<\/li>\n<li>Full automation is possible by turning off &quot;Ask Before Running&quot;<\/li>\n<\/ul>\n<p>This showed that a <strong>very smart notification automation<\/strong> can be achieved for &quot;free,&quot; &quot;without OSS,&quot; and using &quot;Apple products only.&quot;<\/p>\n<hr \/>\n<h2>Comparison with Other Methods<\/h2>\n<table style=\"height: 97px; width: 100%;\">\n<thead>\n<tr style=\"height: 24px;\">\n<th style=\"width: 1%; height: 10px;\">#<\/th>\n<th style=\"width: 26.4414%; height: 10px;\">Method<\/th>\n<th style=\"width: 13.9944%; height: 10px;\">Cost<\/th>\n<th style=\"width: 12.9329%; height: 10px;\">Difficulty<\/th>\n<th style=\"width: 20.1956%; height: 10px;\">Implementation<\/th>\n<th style=\"width: 25.4357%; height: 10px;\">Delivers to iPhone<br \/>\nMessages App?<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"height: 10px;\">\n<td style=\"width: 1%; height: 10px;\">1<\/td>\n<td style=\"width: 26.4414%; height: 10px;\">Carrier Email Forwarding<\/td>\n<td style=\"width: 13.9944%; height: 10px;\">\u25ce<\/td>\n<td style=\"width: 12.9329%; height: 10px;\">\u2605<\/td>\n<td style=\"width: 20.1956%; height: 10px;\">Send from Gmail<br \/>\nto @docomo, etc.<\/td>\n<td style=\"width: 25.4357%; height: 10px;\">\u25ef (SMS-style notification)<\/td>\n<\/tr>\n<tr style=\"height: 22px;\">\n<td style=\"width: 1%; height: 22px;\">2<\/td>\n<td style=\"width: 26.4414%; height: 22px;\">Twilio (SMS API)<\/td>\n<td style=\"width: 13.9944%; height: 22px;\">\u25b3<br \/>\nFree initially<\/td>\n<td style=\"width: 12.9329%; height: 22px;\">\u2605\u2605\u2605<\/td>\n<td style=\"width: 20.1956%; height: 22px;\">Gmail<br \/>\n\u2192 API call<\/td>\n<td style=\"width: 25.4357%; height: 22px;\">\u25ce (Real SMS)<\/td>\n<\/tr>\n<tr style=\"height: 45px;\">\n<td style=\"width: 1%; height: 45px;\">3<\/td>\n<td style=\"width: 26.4414%; height: 45px;\">Mac<br \/>\n+ AppleScript<br \/>\n+ iCloud<\/td>\n<td style=\"width: 13.9944%; height: 45px;\">\u25ce<\/td>\n<td style=\"width: 12.9329%; height: 45px;\">\u2605\u2605\u2605<\/td>\n<td style=\"width: 20.1956%; height: 45px;\">Call shortcut<br \/>\non Mac side<\/td>\n<td style=\"width: 25.4357%; height: 45px;\">\u25ce (iMessage)<\/td>\n<\/tr>\n<tr style=\"height: 10px;\">\n<td style=\"width: 1%; height: 10px;\">4<\/td>\n<td style=\"width: 26.4414%; height: 10px;\">iPhone Shortcuts<br \/>\n+ Automation<\/td>\n<td style=\"width: 13.9944%; height: 10px;\">\u25ce<\/td>\n<td style=\"width: 12.9329%; height: 10px;\">\u2605\u2605<\/td>\n<td style=\"width: 20.1956%; height: 10px;\">Configure on iPhone only<\/td>\n<td style=\"width: 25.4357%; height: 10px;\">\u25ce (iMessage)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>Future Outlook: Toward the Configuration Phase<\/h2>\n<p>In the next &quot;Configuration Phase,&quot; I plan to introduce the <strong>actual setup steps<\/strong> in the following order:<\/p>\n<ol>\n<li>Steps to create an automation in the iPhone Shortcuts app<\/li>\n<li>How to configure email reception conditions<\/li>\n<li>Creating the iMessage sending action<\/li>\n<li>How to prevent it from asking before running<\/li>\n<li>Advanced applications (sending to multiple recipients, customizing notification content, etc.)<\/li>\n<\/ol>\n<ul>\n<li style=\"list-style-type: none;\"><\/li>\n<\/ul>\n<hr \/>\n<h2>Conclusion<\/h2>\n<p>Through this investigation, I initially envisioned a complex setup like &quot;Mac + iCloud + AppleScript + Gmail monitoring,&quot; but ultimately arrived at a simple and most practical solution: <strong>running automation on the iPhone alone<\/strong>.<\/p>\n<p>In the upcoming configuration article, I plan to introduce the steps along with actual screenshots. Stay tuned!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I recently signed up for the car-sharing service &quot;Times Car&quot; (formerly Times Car Share), and one thi [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":1840,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_locale":"en_US","_original_post":"https:\/\/donguri3.net\/?p=1838","footnotes":""},"categories":[1177],"tags":[683,10,690,922,278,459],"class_list":["post-5115","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-iphone-ios-shortcut","tag-gmail","tag-server","tag-690","tag-922","tag-278","tag-459","en-US"],"_links":{"self":[{"href":"https:\/\/donguri3.net\/wp-json\/wp\/v2\/posts\/5115","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/donguri3.net\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/donguri3.net\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/donguri3.net\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/donguri3.net\/wp-json\/wp\/v2\/comments?post=5115"}],"version-history":[{"count":1,"href":"https:\/\/donguri3.net\/wp-json\/wp\/v2\/posts\/5115\/revisions"}],"predecessor-version":[{"id":5118,"href":"https:\/\/donguri3.net\/wp-json\/wp\/v2\/posts\/5115\/revisions\/5118"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/donguri3.net\/wp-json\/wp\/v2\/media\/1840"}],"wp:attachment":[{"href":"https:\/\/donguri3.net\/wp-json\/wp\/v2\/media?parent=5115"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/donguri3.net\/wp-json\/wp\/v2\/categories?post=5115"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/donguri3.net\/wp-json\/wp\/v2\/tags?post=5115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}