When sending messages through an Email Invitation collector or storing respondent information in Contacts, please be aware of the following sending, importing, contacts, and character limits.
Your plan type determines the number of messages you can send in a rolling 24 hour period. The daily sending limit includes invitation, reminder, and thank you messages sent from Email Invitation collectors.
| Plan | Daily Sending Limit |
| Basic (free) and Flex Plan | 1,000 messages per account |
| Other Paid Plans | 20,000 messages per individual account or team seat |
Once you reach the daily sending limit you won’t be able to send messages for 24 hours. You can still schedule messages for a later date and time.
TIP! If you want to send even more messages within 24 hours, send your survey through Mailchimp.
You can import contacts to Contacts by adding them as contacts to an Email Invitation or Text Message, or by importing them to Contacts.
| What | Limit per individual account or team seat |
| Total contacts in Contacts | 2,000,000 |
| Contacts per group in Contacts | 10,000 |
| Contacts per CSV | 10,000 (see formatting tips) |
| Contacts (recipients) you can add to each Email Invitation collector | Paid plans: 10,000 |
| Contacts you can copy/paste manually | 1,000 at a time in the Send To field |
TIP! You can create multiple Email Invitation collectors to send your survey to more contacts.
Email addresses used in Email Invitation and Contacts can't contain the following characters:
| Symbol | Description |
| # | Pound or hashtag |
| & | Ampersand |
| * | Asterisk |
| $ € £ (etc.) | Monetary symbols |
| “ ” " " | Double quotes |
| < > | Angle brackets |
The number of characters per custom data field need to be under the following:
| Field | # of Characters |
| Email Address | 255 |
| First Name | 50 |
| Last Name | 50 |
| Custom 1 | 1,000 |
| Custom 2–50 | 100 |
Filtering in Analyze may be limited if a plus symbol (+) is included in your custom data.
HTML templates have the following limits per message:
| Field | # of Characters |
| Email Message | 16,000 |
| Subject Line | 255 |
| Header | 255 |
| Button | 255 |
Custom HTML and Plain Text templates can have 2MB of information per message.
Top level domains can have up to 6 characters where the .com bit usually is.