To ensure a good user experience and users safety, the following e-mail server restrictions apply on sending and receiving emails.
| 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 |
| 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.