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What Are Email Sending Limits of Various Email Service Providers?

13 min read
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If you are about to start cold email outreach, you might be worried about the email sending limits of different ESPs.

If you exceed these sending limits, you might damage your domain reputation or have your email account blocked (in some cases permanently!). 

Well, that’s precisely why we are writing this detailed blog on email sending limits! 

Different email service providers (ESPs) offer various plans with unique email sending limits. Well, that’s precisely why we are writing this detailed blog on email sending limits! 

After reading our blog, you will be aware of the email sending limits of major ESPs and can decide which ESP to use for your campaigns.

Furthermore, in this blog post, you’ll also get insights on:

  • Best practices to ensure you’re within the email sending limits
  • Why you should use an email automation tool to overcome email sending limits

Email Sending Limits – Table of Contents

Email service providers set email sending limits to restrict the number of emails you can send in a day.

These limits are set by the email service providers to manage server load, maintain security, and monitor suspicious activities. 

If you exceed the sending limit, the email service provider might warn or block your email account. 

For instance, Google gives the following message to its users when they exceed the email limits:

“You have reached a limit for sending emails.”

If you want to learn in-depth about Gmail’s mass email sending limits per day, read this blog.

Also, email sending limits differ from ESP to ESP. They might be daily, hourly, even per minute, or per user.

Why Should You Know Email Sending Limits?

Knowing email sending limits is essential for running successful outbound cold email campaigns and maintaining optimal email deliverability rates.

If you have a personal business account or you are a lead generation agency handling multiple email accounts of your clients, knowing email sending limits will help you plan and scale your email campaigns responsibly while ensuring that you maintain good deliverability rates.

Here are the top four reasons why you should know email sending limits:

1. To Ensure Email Delivery

Email sending limits allow ESPs/mailbox providers some time to filter out spam from legitimate emails.

If you exceed the limits, the mailbox might not process well and send most emails to the spam folders.

This will, in turn, adversely impact you because your essential business emails will be marked as spam.

So, if you want to ensure maximum inbox placement and do not wish to lose an opportunity to start a business conversation, you should know the email sending limits.

2. To Prevent Account Suspension

Sending too many emails within a short time frame triggers the mailbox service provider to block your account.

In some cases, the account blockage lasts 24 hours, and in a few, it can be permanent. 

While your email account is blocked for hours, you cannot communicate necessary business data and face a severe downfall.

So, it’s better to know the email sending limits to refrain from email account suspension.

3. To Avoid Performance Glitches

Email systems can handle little pressure while transferring data.

Hence, if you send too many emails at a time or attach big files while sending emails to multiple recipients, the performance of the email service provider might take a toll.

The mailbox delivery failure can influence your servers and computer systems, resulting in broken email deliverability and poor user experience.

Therefore, knowing the email sending limits is advisable to avoid overall performance issues.

4. To Launch Strategic Cold Emailing Campaigns

Knowing the email sending limits enables businesses and marketers to plan and execute email campaigns strategically.

Staying within the email setting limits ensures that emails always land in the inbox rather than the spam folder.

This approach to launching strategic cold email campaigns will lead to improved engagement and better deliverability rates.

You have to do only two things:

  • Structure the timings of your campaign
  • Segment emails for optimized engagement

Email Sending Limits of Various Email Service Providers

All the popular email service providers, including Google, Microsoft, Yahoo, etc., offer different email sending limits.

The limit difference largely depends on factors like the user’s account type (free or paid plan purchased), the account’s age, and its email account history.

So, to make it easy for you to decide, we have created a table below describing the top email service providers, their daily sending limits, hourly sending limits, recipient limit per email account, and additional information:

Email Service ProviderSending Limit Per DaySending Limit Per HourRecipient Limit Per EmailAttachment File Size LimitWarning Message on Exceeding Limit
Gmail (Google Workspace)200025 MBYou have reached a limit for sending emails.
Microsoft Outlook5,00050020 MBEmail sending limit exceeded.
Microsoft Office 36510,0001,800/30 per minute500150 MBEmail sending limit exceeded.
Zoho Mail250-2,00020 MB to 1 GB, depending on the planMail rate exceeded.
Yahoo Mail50010010025 MBA limit has been met.
GoDaddy50030 MB“The server response was: User _____ has exceeded its 24-hour sending limit.”

“Messages to 25 recipients out of 25 allowed have been sent.”

“System.Net.Mail.SmtpException: Mailbox unavailable”
BlueHost15050 MBSpeed limit exceeded.
DreamHost10040 MBYou will receive an email notification.
Hostinger200 via Webmail500 via SMTP50 MB for inbound email35MB for outbound email
Host Gator12,00050020 MB in Reseller Hosting SMTP30 MB in Windows Hosting SMTPThe email limit has been exceeded. Attempt to send the email at a later time.
Rackspace10,00050 MB

How Does Email Sending Limits Affect Your Cold Email Campaigns?

Email volume or sending limits are essential in planning your cold email campaigns, as they directly affect how you structure and execute your outreach.

They help determine how many emails you can send daily, ensuring you pace your campaign to avoid hitting the limit and maintain consistent outreach over time.

Read below about four significant impacts:

1. Adverse Impact on Prospect Outreach

Popular email service providers like Google and Microsoft set email sending limits for spam prevention.

Exceeding these limits could block you, which means you cannot reach the number of prospects you want. All this will, in the end, fail your prospect outreach.

2. Increased Chances of Getting Delivered in Spam

Sending large emails from a new account can increase the chances of getting marked as spam.

That’s why you should ramp up your email account before launching a campaign. 

Nevertheless, landing in the spam folder because you exceeded your email sending limits means you are tampering with your cold email campaign. 

3. Adversely Impacts Email Deliverability

High email volumes can impact deliverability.

Sending emails in large batches by disrespecting the email sending limits of ESPs can lead to authentication issues.

Your domain might fail authentication checks like DKIM, DMARC, and SPF

Additionally, over-sending emails will trigger ESPs to throttle (delay in email delivery) or slow down your campaign.

This will ultimately impact your email deliverability and fail your outbound outreach campaign.

4. Higher Chances of Email Bounce Rates

Cold email campaigns that exceed sending limits often have a high bounce-back rate.

It will not only tamper with your campaign’s end goals but also harm the sender’s reputation.

You might face issues in the future because you exceed the sending limits.

Best Practices to Ensure You’re Within the Email Sending Limits

Of course, ensuring that you stay within the email sending limit for all your cold emailing campaigns is in your hands. Here are a few strategies to help you with that:

1. Know Your ESP’s Limits

Understand your email service provider’s (ESP) daily and hourly sending limits to avoid penalties or account suspension.

2. Balancing Email Sending Frequency

Monitor your daily email sending approach and track the progress to ensure you are not exceeding the sending limits even for a day.

Balancing the sending frequency while running your cold email campaign will ensure no account blockage. 

3. Use Multiple Email Accounts

Try running your cold email campaign by linking multiple business email accounts.

You can gradually ramp up the email accounts and increase the sending frequency from each account to make sure you are not disrespecting the sending limits. 

4. Use Email Automation Tools

Cold email automation tools can distribute email sending over days, hours, minutes, and seconds.

These tools comply directly with the email sending limits of email service providers.

Additionally, these tools allow you to segment and schedule emails so you don’t have to send bulk emails.

5. Warm Up Your Email Account

Gradually increase the number of emails you send each day to build your sender reputation and avoid triggering spam filters.

6. Monitor Bounce Rates

High bounce rates can damage your overall campaign’s sender reputation. Clean your email list regularly to ensure you send to valid, active addresses only.

How Can a Cold Email Automation Platform Help You Overcome Email Sending Limitations?

You have already learned about ways to overcome email sending limits. But imagine how much time and effort you have to invest in creating multiple email accounts or manually warming up each email account to send bulk emails.

Instead, a cold email automation tool like Saleshandy can eliminate all your troubles with email sending limits and other issues.

Here’s How Saleshandy Can Help You Overcome Email Sending Limits!

  • Unlimited accounts: Saleshandy’s cold outreach software lets you add unlimited accounts, clients, teams, and team members. 
  • Email & domain warm-up: It helps you with email warm-up and domain warm-up to build a sender reputation and not land in spam. 
  • Sender rotation: This feature helps you manage large volumes of emails by rotating senders after a few emails.
  • Sequence score: It analyzes the effectiveness of email sequences based on three factors: email account setup, sequence setup, and email writing. It then triggers spam potential.
  • Reports and analytics: It tracks your cold email outbound outreach campaign performance.

Take The Next Step – Sign Up on Saleshandy

Now that you know about the email sending limits of different ESPs and the best practices for overcoming them, the next step is to sign up on Saleshandy. 

Start using the cold automation software to enjoy sending limitless emails with features like unlimited email accounts and clients.

Also, use the unified inbox feature to track all your cold email outreach campaigns and see what’s working and what’s not. Consider Saleshandy your next cold outreach partner!

FAQs

1. How Many Emails Can I Send at Once in Outlook?

The daily email sending limit for personal Outlook accounts is 300. However, the limit for business or Office 365 accounts is 10,000.

2. How Many Emails Can You Send at Once in Gmail?

The daily sending limit for personal Google accounts is 500. However, the daily sending limit for Google Workspace accounts is 2,000.

3. How to Send 10,000 Emails in a Day Using Gmail?

There are two ways to send 10,000 emails using Gmail in a day:

  1. Subscribe to a cold email automation software. Connect multiple email accounts and gradually warm them up to prevent triggering spam filters. Then, large volumes of emails will be sent gradually over several days.
  1. Create multiple email accounts from secondary domains and use its daily sending limit to send 10K emails over a few days.

4. How Do Email Sending Limits Vary For Free vs. Paid Email Service Providers?

Free email service providers offer low sending limits to help individuals or businesses avoid spammy or suspicious activities. On the contrary, paid email service providers provide high sending limits to marketers and businesses to scale their outreach and build the sender’s reputation.

5. Can I Increase The Email Sending Limit By Verifying My Domain?

The answer is yes! Verifying your domain improves email deliverability, enhances your reputation, elevates credibility, and improves spam filter evasion. All these parameters contribute to increasing your email sending limits.

6. Are There Ways to Bypass Email Sending Limits For Cold Email Outreach?

Yes, you can bypass email sending limits for cold email outreach using cold email automation tools like Saleshandy. It helps you overcome the restriction of email sending limit while adhering to the email service provider’s guidelines.

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