I’m seeking clarification on the email sending limits with Gmail for my web application.
I’m developing a web application that utilizes a PHP email library, specifically PHPMailer, to send emails via SMTP from our business Gmail account. This system sends out automated emails to customers during several stages of their experience.
Here’s an overview of our current workflow:
Customers sign up on our site
The system sends out a confirmation email along with a ticket for the event
Before the event starts, we send reminder emails to all attendees
We’re utilizing Google Workspace for our business email purposes
My specific inquiries are:
What are the email sending limits on an hourly basis for Gmail SMTP?
Are there daily email limits that I need to be aware of?
Is there a cap on the number of emails we can send per minute?
I aim to ensure that our automated email process adheres to the established Gmail sending limits to avoid any disruption in service or possible account issues. Any information regarding the SMTP rate limits for Gmail would be greatly appreciated.
Having extensive experience with Gmail SMTP for automated email campaigns, I’d like to share some insights. While the Google Workspace daily limit of 2000 emails is accurate, your sending pattern greatly influences deliverability. Google tracks your sending behavior closely; sudden spikes in volume can trigger warnings even if you stay under limits. It’s wise to increase your email output gradually over time to build a solid sending reputation. Additionally, aim to keep your bounce rates low and send in smaller batches throughout the day to enhance deliverability and minimize the risk of soft-bounces.
just ran into this myself last month. google workspace is way better than regular gmail for bulk sending but you still gotta be carefull. i noticed if you send too fast you’ll get temporary blocks even within the daily limits. try spacing out your sends by like 10-15 seconds between emails and you should be fine.
Gmail SMTP through Google Workspace has different limits compared to regular Gmail accounts. For Google Workspace accounts, you can send up to 2000 emails per day, which is significantly higher than the 500 daily limit for free Gmail accounts. However, there is no official hourly limit documented by Google, though they do implement rate limiting to prevent abuse. From my experience running automated email campaigns, I’ve found that staying under 100 emails per hour works reliably without triggering any restrictions. The per-minute limit isn’t officially specified, but I typically batch my sends with small delays between each email to avoid any potential throttling. One important consideration is that these limits apply per sending account, so if you anticipate higher volumes, you might need to consider using multiple Google Workspace accounts or switching to a dedicated email service provider like SendGrid or Amazon SES for better scalability and deliverability tracking.