Daily Send Limits + Limitations
Each account has an account wide limit of 5,000 HTML newsletter emails per 24-hour period.
HTML newsletters are sent from Levitate's server, so this limit covers all users on the account combined— when your account has sent 5K HTML newsletter emails in a 24-hour period, newsletter sending will halt until that 24-hour period has expired. Plain text emails are sent from each user's own email account and are not counted toward this limit; they are governed by the daily and hourly send limits set by that user's email provider (see the table below).
Why the limits?
The motivation behind implementing an account wide limit is to further protect your email domain(s) when sending to larger groups— email providers like Google, Microsoft, and Yahoo keep a close eye on send volume, and applying a limit like this will provide a safeguard against being flagged as spam by your email provider or being locked out of your email account.
At the end of the day, we want you to be able to send messages that look and feel authentic, without worrying about being flagged as spam, locked out of your email account, or having your email health negatively impacted. These limits are safeguards to ensure that you are able to reach out to your clients, authentically and effectively, every day.
Read more about the new Google and Yahoo guidelines here.
Daily Send Limits Based on Email Server
| Email Server | Number of emails in a 24-hour period per user |
|---|---|
| Office365 | 350 |
| Google Workspaces (for business) | 350 |
| Exchange | 350 |
| IMAP | 250 |
| Outlook (personal) | 200 |
The number of emails sent in a 24 hour period is set by the email provider to prevent spam. Levitate wants to ensure that we stay below this limit so the client can still send other daily emails.
Clients can still send to larger lists (less than 5k total size) since Levitate will automatically break up the list into multiple days to complete the send.
| Send Type | Max List Size | Notes |
|---|---|---|
| Clients' email server | Based on email server send limits |
Levitate's recommendation
|
| HTML Newsletter | 5K per send |
|
The ideal setup is to use the clients email domain for personal and authentic outreach. Combined with the HTML newsletters for an occasional large send or a send that needs to go out quickly.
Cold prospecting to large lists is discouraged on any email method as it most likely will result in spam reports and deliverability issues. Levitate recommends using another method to first validate your leads and then use Levitate for a personal outreach to a smaller list of warm prospects.
How Automations Handle Daily Limits
Automatic Queuing: When an automation reaches your daily send limit, it doesn't stop permanently - it queues remaining contacts for the next day.
No Manual Intervention Needed:
- System automatically tracks where automation stopped
- Resumes at midnight ET when limit resets
- Continues until all contacts complete
- You will receive completion notification when finished
Multi-Day Automations: Large automations may span multiple days
- 500 contacts with 250/day limit = 2 days
- 1000 contacts with 250/day limit = 4 days
- System calculates expected completion automatically
Increasing Daily Limits: To reduce campaign duration
- Contact Success Manager to discuss limit increases
- Text limits can be raised with Brand/Campaign registration
- Email limits may be raised based on account health
- Higher limits = faster automation completion
Email Attachment File Size Limits
When sending emails with attachments through Levitate, there is a maximum total attachment size limit enforced at the platform level. This limit applies regardless of which email provider you use.
Attachment Size Limits at a Glance
| Email Type | Maximum Attachment Size |
|---|---|
| Gmail | 6 MB |
| Office 365 | 6 MB |
| SMTP / Other providers | 6 MB |
| Plain Text Emails | 3 MB |
| Inline image uploads | 5 MB |
Note: Your email provider (such as Gmail or Office 365) may support larger attachments natively — for example, Office 365 allows up to 25 MB by default. However, Levitate enforces a 6 MB platform-wide limit. If your provider is configured with a lower limit, the lower value will apply.
What Happens If I Exceed the Limit?
If your attachment exceeds the size limit, you'll see the following error:
"You've exceeded the attachment size limit."
Tips for Sending Large Files
If your file is too large to attach directly, here are a few options:
- Compress images before attaching — tools like TinyPNG can significantly reduce image file sizes.
- Convert documents to PDF — PDFs are often smaller than their original format (e.g., Word documents with embedded images).
- Share via a link — Upload your file to a cloud storage service (Google Drive, Dropbox, etc.) and paste the link into your email instead of attaching the file directly.
FAQs
Q: What is the maximum attachment size for Office 365 emails in Levitate?
A: Levitate enforces a 6 MB total attachment size limit for all email providers, including Office 365. This is lower than Office 365's native 25 MB limit. For larger files, we recommend sharing via a link instead.
Q: Does the 6 MB limit apply to the total size of all attachments, or per file?
A: The 6 MB limit applies to the total combined size of all attachments in a single email.
Q: Why is the limit for plain text emails lower?
A: Plain text emails have a 3 MB attachment limit due to the format's constraints. If you need to send larger attachments, consider sending an HTML-formatted email instead.
Q: Can my daily send limit be increased?
A: Yes, in some cases. To request an increase, contact your Success Specialist or reach out to Levitate Support at support@levitateapp.com with your account name and the limit you are looking to reach. Increases are evaluated based on your account standing and sending domain configuration — accounts with a well-established sending domain and a healthy sending history are more likely to qualify.
Q: My campaign to 500 contacts is estimated to take many days, even though it's well under 5,000. Why?
A: The 5,000/day account limit applies only to HTML newsletters, which are sent from Levitate's server. Plain text emails are sent from your own email account, so they are governed by the per-user daily limit set by your email provider — for example, 350 emails per day for Office 365, Google Workspace, and Exchange connections, or 200 per day for a personal Outlook account. When multiple campaigns are active for the same user at the same time, they all draw from that user's daily quota. Levitate distributes the available sends across all active campaigns, so each individual campaign advances more slowly. A plain text campaign to 500 contacts sharing a 350/day quota with several other active campaigns can take many days to complete. To speed up a specific campaign, pause or complete other active campaigns so the full daily quota is available for the one you want to prioritize.
Q: Why has my daily send limit dropped from what it used to be?
A: The per-user daily limit is set by your connected email provider, not by Levitate. Office 365, Google Workspace, and Exchange connections each allow up to 350 emails per day per user; IMAP connections allow 250; and personal Outlook accounts allow 200. If your limit appears lower than before, the most common cause is a change to your email connection — for example, reconnecting under a different provider type (such as IMAP instead of Exchange) or a configuration update made to your account. Check the email connection type currently linked to your account in your settings. If you believe the limit is incorrect, contact your Success Specialist or reach out to Levitate Support at support@levitateapp.com.
Q: I have multiple campaigns queued at once. Why are they all moving slowly even though each is within limits?
A: All active campaigns for a given user share the same per-user daily quota. For example, if your Office 365 connection allows 350 emails per day and you have five campaigns running simultaneously, each campaign can advance by roughly 70 contacts per day rather than 350. Levitate queues the remaining contacts and resumes at midnight ET when the limit resets. Running campaigns one at a time — or pausing campaigns you don't need to send immediately — lets each campaign use the full daily quota and complete faster.