You are here: Legal Notices > Mailbox Rules Policy

In order to keep our mail servers efficient, we need to apply the following restrictions to your mailbox:
Subject to any other technical limitations, Plutus™ Internet Services Pty (Ltd.) restricts the size of an individual e-mail, sent or received, to 15Mb per e-mail on our International servers and 25Mb on our South African servers.
If you make use of a mailing list, the number of recipients may not exceed 25 per email. Mailing Lists which exceeds 250 members may only be sent during off-peak hours to reduce the load on our mail servers (1AM - 6 AM CAT). Any account found to abuse this rule will be placed on hold for Network Abuse.
Abuse of SMTP Mail Server: We do not allow clients to send more than specified "Max Hourly Emails" specified for each hosting package (the default limit being 300 emails per hour). If you do send more than this specified limit at any given time during the day/night, your account will be temporarily placed on hold until 1 hour has expired.
Plutus™ Internet Services Pty (Ltd.) reserves the right to reclaim your e-mail address during the course of your subscription should Plutus™ Internet Services Pty (Ltd.), in its sole discretion, deem this necessary.
Plutus™ Internet Services Pty (Ltd.) shall be entitled to take such steps to fight spam / junk-mail / unsolicited mail / viruses as Plutus™ Internet Services Pty (Ltd.) may deem necessary and/or appropriate from time to time, including (without being limited to) not delivering any mail which Plutus™ Internet Services Pty (Ltd.), in its sole discretion, suspects of being or containing spam / junk-mail / unsolicited mail / viruses.
The use of catch-alls on mail accounts hosted with us are not allowed. Default catch-all accounts are disabled by default and cannot be re-activated.
Upon cancellation of your subscription you will lose and Plutus™ Internet Services Pty (Ltd.) will re-claim your username and e-mail address. 14 days after termination of your Plutus™ Internet Services Pty (Ltd.) subscription, Plutus™ Internet Services Pty (Ltd.) may re-issue your username and e-mail address to a new subscriber. Be sure to inform everyone so that they do not inadvertently send e-mail intended for you to the new subscriber.
You agree that Plutus™ Internet Services Pty (Ltd.) shall not be liable to you or any third party in respect of any loss or damage howsoever caused by or arising from the implementation by Plutus™ Internet Services Pty (Ltd.) of the mailbox rules, as set out above. This exclusion of liability of Plutus™ Internet Services Pty (Ltd.) for loss or damage will include (but is not necessarily limited to):
Loss or damage caused by negligent acts of Plutus™ Internet Services Pty (Ltd.) and any acts of Plutus™ Internet Services Pty (Ltd.)’s employees;
Any direct, consequential, incidental, indirect or special loss or damage flowing from business interruption, loss of business information, loss of data or any other cause;
Any loss or damage, regardless of whether a claim for such loss or damage is based on breach of contract, delict, breach of implied warranties or otherwise; and
any loss or damage, whether it could have been foreseen or not.
Plutus™ Internet Services Pty (Ltd.) reserves the right to change the above rules at any time.
You acknowledge and agree that by using and accessing the Plutus™ Internet Services Pty (Ltd.) mail service you will become bound to the then current version of these rules (the "current version") and, unless stated otherwise in the current version, all previous versions will be superseded by the current version.
You will be responsible for reviewing the then current version each time you use the Plutus™ Internet Services Pty (Ltd.) mail service.
Without derogating from the afore going, and without imposing any obligation on Plutus™ Internet Services Pty (Ltd.) whatsoever, Plutus™ Internet Services Pty (Ltd.) reserves the right to give you notification of amendments of the these rules either by e-mail or by posting a notice on the Plutus™ Internet Services Pty (Ltd.) Notice Board. On notification of the existence of the amended rules, you will be obliged to visit the legal section of the Plutus™ Internet Services Pty (Ltd.) website and view the then current version.
A certificate signed by Plutus™ Internet Services Pty (Ltd.) (or by one of Plutus™ Internet Services Pty (Ltd.)'s directors, whose appointment, qualification and authority need not be proved) will be prima facie proof of the date of publication and content of the current version and all previous versions of the rules.

There is a hourly email limit per domain this limit is also applied towards mailman. If you send over this amount in any hour most of the e-mails will bounce back with a undeliverable error.

Many of our servers have a 120 pop checks per hour limit per mailbox.  If you go over this you're likely to get a wrong password error message saying login incorrect. Just wait an hour and it will automatically unlock you. To prevent this from happening again make sure to disable auto checking or at least set it to something higher such as 10 minutes.

Any mailing list larger than 1,000 will require a dedicated hosting solution from us. Note: dividing one large list into smaller lists to get below this limit is not allowed.

Mailing Lists Rules

1. Anytime you're sending a message no matter how large your e-mail list is you must throttle it.  We recommend you throttle it to at the very least sending 1 email every 6 seconds. If the mailing list software you're using does not allow you to throttle you must switch to something else. We recommend phplist which can be found in your control panel under fantastico. If you do not throttle and you try sending let's say 500 emails the server will try sending all 500 in 1 second which is not possible. This will cause the server load to go very high and for the entire server to be sluggish until this process is completed. It is our job to keep the server up and running without being sluggish. Anyone who causes the servers load to go high will be suspended and the process will be terminated. If you choose not to throttle you will most likely be suspended for crashing the server.

2. Any mailing list over 250 emails is only allowed to be sent to during off-peak times to prevent high server loads. Off peak times qualify as all day Saturday and Sunday, and 1am - 6 am central african time Monday-Friday.

3. You are not allowed to mail to a mailing list you were given or purchased. This is spamming because they never agreed to you personally sending them mail. We do not care how you justify it. This is spam and will result in termination of the offending account.

4. Any unsolicited e-mail being sent will result in termination of the offending account. We take a zero tolerance stance against sending of unsolicited e-mail.

5. Any mailling list MUST comply with the Electronic Communications and Transactions Act, 2002.
This can be found at:


We encourage all users not to use auto-responders if possible. Auto-responders automatically reply with a custom response to one or every incoming message depending on how they're configured. The problem is that responses get sent back to spammers as well, letting them know the account is a valid account, and resulting in more spam being sent to that account. The same rule applies to catch-all accounts which are havens for spammers to send to and it be caught by the catch-all account.