How to Send Thousands of Emails at Once: 2025 Guide
If you ever wondered about how to send thousands of emails at once, we’re going to answer that question today. You’re not the first one to ask this question; it’s a problem so common that there’s an entire industry built around it.
Welcome to the world of email marketing!
This guide will show you how you can send lots of emails to your contacts and also share ways to optimize the process and track performance.
Can You Send Thousands of Emails from Your Regular Email Account?
It’s technically possible, but it will be extremely inconvenient. This is because popular mailbox providers such as Gmail and Yahoo offer email accounts for personal use and not for mass email marketing.
For example, Gmail has daily sending limits and spam filters that can be stricter for bulk emails. This means your email campaigns will land in spam folders instead of inboxes.
Gmail accounts ending with “@gmail.com” allow sending a maximum of 500 emails within a 24-hour period. Google Workspace accounts (@yourdomain.com) permit sending up to 2,000 emails within the same timeframe.
In this scenario, if you wanted to send 1000 emails at once to a list of leads, how would you do it?
You could create 2 Gmail accounts and email 500 contacts at a time; but even if you stay within the limit, sending multiple emails from a single account could raise red flags for spam filters. This could make your emails go to spam more often than inboxes.
There are browser plugins and online services that let you send emails via Gmail; you’d still have to create accounts or use the ones they created. But none of these services are free.
In short — you could send thousands of emails from a regular email account, but it will be a massive challenge. This next section explains why.
Using Gmail to Send Marketing Emails is a Bad Idea
Let’s assume you’ve decided to use Gmail to send your marketing emails.
The top reasons you shouldn’t do this are:
- You will violate the terms of service,
- You get limited features,
- Design options are poor,
- Strong chance you’ll land in the spam folder,
- The 500-email limit is restrictive,
- Personalization isn’t possible,
- You may break compliance laws,
- It’s poor for your brand image.
These points apply to most popular mailbox providers in the market today. And these are all serious hurdles, as you’ll discover below.
Terms of Service
Gmail prohibits using their platform for bulk or commercial emailing purposes. Sending such emails from Gmail could potentially violate these terms, leading to account suspension or termination.
If you create a hundred accounts and they all get banned after you send emails, it’s a huge waste of your time and efforts.
No Features
Gmail lacks the advanced features and functionalities that are crucial for effective marketing campaigns.
This includes access to:
Dedicated email marketing platforms offer these features to optimize campaign performance. We cover this in detail a little bit later.
Limited Designs
Gmail offers basic email templates for composing messages. These templates are simple and lack the sophistication and variety available in dedicated email platforms.
To activate Templates, go to Gmail Settings from the gear icon, and go to the Advanced tab. Here you see a radio button to turn on templates; click that, then save and exit.
The next time you compose an email, you can click the three-dot icon to deploy or save email templates. This isn’t ideal if you want to create feature-rich email campaign templates for marketing.
Customization options for email design are lousy, too. You can change basic elements like text color, font, and formatting, but there are no advanced design tools. This prevents you from creating complex layouts or adding interactive elements for email gamification.
You can’t do much for mobile email marketing either; there are no controls over formatting. This could lead to email accessibility problems as you struggle to set readability on smartphones or tablets.
Gmail isn’t suitable for creating feature-rich email campaign templates for marketing.
Poor Deliverability Rate
Your email deliverability rate tells you how many of the emails you sent made it to the inbox. This is the biggest con of using Gmail to send marketing emails; your inbox placement will suffer.
Gmail is sensitive to spam email senders; sending marketing emails from a Gmail account increases the risk of being marked as email spam.
Additionally, violating Gmail’s sending limits or triggering spam filters can lead to Google suspending your account.
Sending Limits
Gmail imposes sending limits to prevent abuse and spamming. These limits may hinder your ability to reach your entire email marketing subscriber base efficiently, especially if you have a large audience.
Gmail simply isn’t built to handle large-scale email marketing. As your list grows and your campaigns become more complex, managing them becomes difficult and time-consuming.
No Personalization
Gmail is designed primarily for one-to-one communication rather than mass marketing. Email personalization is crucial for engaging subscribers, and Gmail’s limited customization options may not suffice for effective marketing campaigns.
Compliance and Legal Problems
Marketing emails must comply with various legal regulations, such as the CAN-SPAM Act or GDPR Compliance Checklist. Using Gmail for marketing purposes may increase the risk of non-compliance due to limited control over email delivery and tracking.
It’s Not Professional!
Check out the email in the image above; the logo displays within the inbox, plus the sender gets a blue tick from Gmail. These are the signs of implementing BIMI, which makes you a trusted sender.
You can’t appear this professional by sending from a Gmail address.
Sending marketing emails from a generic Gmail address may undermine the professionalism and credibility of your brand. Using a custom domain email address such as “ceo@johnsmith.com” is more appropriate for marketing campaigns.
Gmail or Yahoo is suitable only for personal or small-scale communications. For all these reasons, it’s best to stick to sending only personal emails from Gmail.
So, how exactly are you supposed to send thousands of emails at once?
The solution you’re looking for is an email marketing platform. The term may sound daunting, but it’s simply a service that lets you send emails to a large contact list. You also get a bunch of features and tools to help you extract maximum value from your email campaigns.
Here’s why it’s a great idea to consider one.
The Advantages of Using an Email Marketing Platform
An email marketing platform, or email services provider (ESP), is a specialized software or online service that helps you with all aspects of email campaign management.
An email campaign is simply the act of sending multiple emails in one go. ESPs offer features and tools to streamline the process of executing these campaigns, as well as studying performance.
By choosing to send emails using an email marketing platform, you get these benefits:
- Contact management,
- Deliverability,
- Compliance,
- Personalization,
- Segmentation,
- Analytics,
- A template library,
- Integration with third-party tools,
- Customer care,
- Scalability,
- Automation.
Wondering what these terms have to do with sending emails?
Don’t let the jargon scare you! This next section explains how you can benefit from these amazing features.
ESP Features Explained
If you’re curious to learn more about these terms, here are simple explanations:
| Feature | What it means |
|---|---|
| Contact management | Organize and manage email contacts, including segmentation, custom data, and preferences. |
| Deliverability | The chances of emails sent from an ESP landing in the inbox are much higher compared to personal email accounts. |
| Compliance | These features help you comply with email regulations and anti-spam laws. |
| Personalization | Personalize email content based on subscriber data, such as first name, location, or past interactions. |
| Segmentation | Divide email contacts into targeted segments based on demographics, behaviors, or other criteria. |
| Analytics | Track and analyze email campaign performance metrics. |
| Template library | A collection of professionally designed email templates optimized for various purposes and industries. |
| A/B testing | Experiment with different email strategies to identify the most effective ways to improve campaign performance. |
| Integration with third-party tools | Compatibility with other marketing tools and platforms for seamless data sharing and workflow automation. |
| Customer care | You get dedicated customer support personnel to help you with technical problems, plus knowledge resources and tutorials. |
| Scalability | When your needs grow, an ESP can scale with them. |
| Automation | Set up automated email workflows triggered by specific actions or events. |
These features can magically transform your email-sending experience from a basic, no-frills one to a powerful, controlled, and trackable activity where you can learn more about your subscribers.
While the action of sending an email is the same, the difference is night and day. With a proper email marketing platform, you get control and results like never before.
Using Personal Email Accounts vs Email Marketing Platforms
This table highlights the differences between sending thousands of emails from your Gmail or Yahoo account versus sending them via a professional ESP.
| Feature | Gmail/Yahoo | Email marketing platform |
|---|---|---|
| Design templates | Basic templates | Professionally designed templates |
| Contact management | Basic information | Flexible and powerful contact management tools and features |
| Automation | None | Advanced automation for triggered emails and workflows |
| Personalization | Limited to email templates and contact groups | Dynamic content insertion and advanced personalization features |
| Analytics | None | Comprehensive analytics and reporting |
| A/B testing | Not available | A/B testing for experimenting with different elements and strategies. |
| Compliance and deliverability | No built-in compliance features | Compliance tools (opt-in/opt-out management) and monitoring for better deliverability |
| Integration support for third-party tools | Not much besides a few plugins | Integrations with CRM, e-commerce, and analytics platforms for seamless data sharing |
| Tech support | Limited support options | Dedicated customer support and resources for technical assistance |
| Cost | Free for personal use; Paid plans for business use | Subscription-based pricing with various plans based on features and email volume |
As you can see, personal email accounts are no match whatsoever for email platforms; they’re not even in the same league.
Next, we discuss one of our favorite aspects of email marketing — automation.
Email Marketing Automation Will Change Your Life!
Email marketing automation gets its own section because of how useful it is; it transforms the process of sending emails into something simple and manageable.
Automation is a game-changer for email senders, offering a powerful set of tools to streamline workflows and boost campaign effectiveness.
Sending emails gets a lot easier with automation:
- It eliminates the need for manual intervention in repetitive tasks such as sending confirmation emails, birthday greetings, or follow-up emails. This frees up time to focus on email content creation and campaign optimization.
- Automation allows for consistent communication with subscribers by scheduling emails to be sent at optimal times, regardless of your availability.
- You can send mass personalized emails to each subscriber based on their behaviors or interactions. This can significantly improve email engagement without requiring manual effort for each recipient.
- With automation, you can set up trigger emails, activated based on specific actions like website visits, email opens, or purchases.
- With an email segmentation strategy in place, you can use automation to target specific groups and send tailored content.
- You can run email nurture campaigns to automatically deliver content at different stages of your email marketing funnel. This helps nudge leads toward conversion, which is not possible manually.
- Whether sending emails to hundreds or thousands of recipients, automation ensures that each subscriber receives the right message at the right time.
Email automation gives you 24/7 control over your email marketing. Like we said — one of the best features of using an ESP!
Types of Email Campaigns You Can Send
If you opt for an ESP, you can send different types of email campaigns. Most of these aren’t possible using a regular email account; it would be too taxing.
The most common email campaigns you can execute with an email platform:
| Campaign Type | Description | What’s the use case? |
|---|---|---|
| Welcome email campaigns | Automated emails sent to new subscribers after signup | Introduce your brand, build relationships, or educate users |
| Promotional emails | Emails promoting special offers, discounts, or new product launches | Drive sales and increase revenue |
| Holiday email campaigns | Emails promoting sales or events tied to holidays or specific seasons | Increase brand awareness and capitalize on seasonal trends |
| Transactional emails | Automated emails triggered by order confirmations, shipping updates, or password resets | Provide important information and improve customer experience |
| Abandoned cart emails | Email sequence sent to customers who leave a website without completing a purchase | Recover lost sales and remind customers about abandoned items |
| Email surveys | Emails requesting feedback through surveys or polls | Improve products or services and understand customer sentiment |
| Re-engagement email campaigns | Emails sent to inactive subscribers to win them back | Reduce churn and re-activate dormant leads |
Depending on your industry and what’s popular with your subscriber pool, you can refine and shortlist the types of campaigns you send your readers.
How to Track the Performance of Your Emails
When you run an email campaign on an ESP, you also get the ability to track email performance; you can’t do this with a regular Gmail or Outlook account.
There are numerous email engagement metrics that you can study to refine future strategies further so that you get the best results from the campaigns you run next.
These metrics give you insight:
| Metric | What it tells you |
|---|---|
| Delivery rate | The rate at which email is accepted by the recipient mailboxes. Calculated by dividing the unique emails accepted by total sent emails. |
| Open rate | The percentage of recipients who opened the email. |
| Click-through rate/CTR | The percentage of recipients who clicked on at least one link within the email; calculated by dividing unique clicks by total number of emails sent. |
| Conversion rate | Percentage of email recipients who completed the desired action, such as making a purchase or downloading a file. |
| Bounce rate | The percentage of sent emails that were not delivered. |
| Unsubscribe rate | Number of recipients who removed themselves from your email list. |
| Spam complaints | The percentage of recipients who reported your email as spam. |
By analyzing these data points, you will be able to steer your future campaigns in the right direction, until you hit a sweet spot and know exactly what emails to send your customers!
Choosing the Right ESP
Now that you’re convinced that an ESP is the answer to your problems, how do you go about choosing one?
Factors to consider:
- Deliverability rates: A high deliverability rate ensures your emails reach recipients’ inboxes and avoid spam filters. Look for ESPs with a proven track record of high email deliverability.
- Reliability and uptime: Your ESP should offer consistent service with minimal downtime. Find providers with high uptime guarantees to ensure your emails are always being delivered.
- Security and compliance: Choose an ESP that prioritizes data security and has a strict anti-spam policy. Compliance with data privacy regulations is crucial.
- Scalability and flexibility: Consider your future needs. Can the ESP handle complex campaigns and help you grow your email list?
- User-friendly UI and features: A user-friendly interface makes managing your emails and campaigns effortless. Seek intuitive features like drag-and-drop email builders, easy email list management tools, and automation capabilities.
- Integration: Does the ESP integrate with your existing CRM, marketing automation platform, or other tools? Seamless integration streamlines your workflow and avoids data silos.
- Customer support: Reliable customer support is vital when you encounter issues. Look for providers offering multiple support channels (phone, email, live chat) with responsive and knowledgeable reps.
- Cost-effectiveness: ESP pricing varies depending on features and sending volume. Determine your budget and choose an ESP that aligns with your needs; it will help manage your email marketing costs.
We do have a recommendation that checks all these boxes…
Campaign Refinery: The Best Deliverability Solution
Campaign Refinery is built around the idea that if an email is sent, it should have the best chance of reaching the inbox.
And we’ve been successful with this mission; Campaign Refinery has the best deliverability rates in the market, and we’re proud of it!
And that’s just the tip of the iceberg:
- We have an automated list cleaner that goes through your contacts list and automatically removes spam traps, burner IDs, seeder accounts, role-based emails, complainers, and similar problem-causing entries.
- Our automation designer is simple and intuitive; if you can dream it, you can create it.
- Want to segment your lists and organize your leads in a hundred different ways? Discover our tagging system — you will be surprised at how easily you can target your subscribers.
- With Zapier, you can connect all your favorite marketing tools. We’re talking thousands.
- Want click rates as high as 72.76%? Try our Gamification system — by rewarding your subscribers for engagement, they will start looking forward to your next email!
- Dependable, friendly customer support — we really care.
What better place to begin your email journey than an email marketing platform that is the best at landing your emails in the inbox?
FAQ
How to Send Marketing Emails From Gmail?
You shouldn’t use regular Gmail for marketing emails; instead, use an email marketing service.
How Can I Send 1000 Emails at a Time?
Use an email marketing platform or service designed for bulk sending.
How to Send a Lot of Emails at Once?
Sign up with a dedicated email marketing platform for large-scale sending.
How to Send 100 Emails at Once?
Gmail lets you send 100 emails, but we recommend an email marketing service.
How to Send Millions of Emails?
You need a robust email marketing platform with dedicated infrastructure for high-volume sending.
