| Restrictions | Standard | Premium and Ultimate | Time (TTL) (in minutes) |
| Maximum mailbox size
Mailbox size limit depending on the package. |
(8|12|16) GiB | (50|100) GiB | – |
| SMTP RCPT
You can send a message to up to 2000 recipients within 24 hours using SMTP. |
2000 | 4000 | 1440 |
| SMTP forwards
The number of recipients an email can be sent to within 24 hours (copies + redirects through filters) |
10000 | 20000 | 1440 |
| SMTP IP
The number of different IP addresses you can send emails from within 15 minutes. |
10 | 10 | 15 |
| Number of recipients of one email via SMTP
Number of email addresses allowed in one letter (To: Cc: Bcc : |
400 | 400 | – |
| Number of received emails
The number of received emails for one mailbox per minute |
60 | 90 | 1 |
| IMAP upload
The amount of data (in bytes) that can be uploaded via IMAP within 24 hours. |
5 GiB | 20 GiB | 1440 |
| IMAP download
The amount of data (in bytes) that can be downloaded via IMAP within 24 hours. The amount of data downloaded via webmail is not included. |
10 GiB | 20 GiB | 1440 |
| POP3 download
The amount of data (in bytes) that can be downloaded via POP3 in 24 hours. |
10 GiB | 20 GiB | 1440 |
| Number of auto-replies
One email account can send 2000 auto-replies in 24 hours. |
2000 | 2000 | 1440 |
| Number of auto-replies
Maximum filters that can be added via webmail to one account |
400 | 400 | – |
| Limit by IP address of the sender for each recipient
Number of emails one IP address can send to the same mailbox in an hour. (Preventing DoS attacks). |
100 | 100 | 60 |
| Failed login attempts
Password protection from brute-force. Example: if someone tries to log in 12 times per second with wrong passwords, they will not be able to log in to that account for 119 seconds. |
12 | 12 | 2 |
| Number of simultaneous IMAP connections
One user can establish multiple IMAP connections to the server at the same time. |
25 | 50 | – |
| Maximum number of POP3 messages
The maximum number of messages that can be viewed using the POP3 protocol. |
250 | 2000 | – |
Other restrictions and settings
- Maximum size of sent and received email message: 25 MiB
- Maximum message size that can be downloaded via IMAP client: 35 MiB
- Automatic deletion of messages from Trash and Spam (Junk) folders : 30 days
- The period for archiving deleted messages: 14 days (time to restore deleted messages from backup).
- An auto-reply is sent to the same recipient once every 4 hours.
- Emails with spam score above 10 points will not be forwarded (redirect, copy).
- Emails cannot be sent from another sender’s address through the SMTP server.
Premium and Ultimate packages
Premium and Ultimate are intended for the professional e-mail users or enthusiasts.
A small additional fee applies for using these packages, but they have a separate disk space that is independent from the web hosting package and does not affect the amount of disk space on the server.
Advanced Malware Protection (Varist)
In Premium and Ultimate mailboxes, Varist antivirus technology is used in addition to the standard spam and security checks. Varist is a malware protection company founded in Iceland, whose technology is used in many security solutions around the world.
The Varist detection engine analyzes email attachments and can detect even packed or hidden malware (for example scripts inside PDF files, macros in documents, or suspicious files inside archives). The analysis takes place on Zone servers, and emails or files are not sent to external services.