Email Support

What are the iSystems Mail Server settings?

Incoming Mail Server (POP3 / IMAP)

Incoming Mail Server Name -
Username/Password - as supplied

Encryption Type is SSL or TLS
POP3 port number - 110 (no SSL/TLS) / 995 (SSL/TLS)
IMAP port number - 143 (no SSL/TLS) / 993 (SSL/TLS)

Outgoing Mail Server (SMTP)

Outgoing Mail Server Name:
Authentication - YES, you must use the same username and password as your incoming mail server.
Encryption Type is STARTTLS or TLS/SSL
Port Numbers - 587 (STARTTLS) or 465 (TLS/SSL)

What is POP, IMAP and SMTP?

Post Office Protocol (POP) and Internet Message Access Protocol (IMAP) is used when receiving email on your device.  Simple Mail Transfer Protocol (SMTP) is used to send email from your device.

Can I check my email when I am not at my own device?

Yes.  This is done using our webmail service providing you have an email mailbox hosted by iSystems.  To access this service from any web browser go to our website ( and click on the Webmail button/link.  Log in using your mailbox username and password.

I can not view or open email when using webmail?

Quite often this is due to having an email client such as Windows Live Mail or Mozilla Thunderbird running on your device at the same time.  As default your email client will remove any email from the server once it has downloaded to your computer (Send and Receive).

Why do I get an error message when trying to attach large files to an email?

This error is due to limitations of many email systems to ensure they don't overload.  If you have large files to email try compressing them into a ZIP/archive file or if there are multiple attachements try sending them in separate emails.

Email Viruses

Viruses come in many shapes and forms and caution needs to be exercised when dealing with them.

  • Use an anti-virus application and keep it up to date
  • Be suspicious of attachments sent to you from people you don't know
  • Do not open an attachment unless you know why it was sent to you
  • Scan attachments with your anti-virus application before opening

Do I need a virus scanner installed on my device?

Yes, most definately!  An anti-virus scanner helps prevent viruses getting in to your computer potentially deleting important documents and leaving you costly technician repair bills.

I don't have an anti-virus application installed, can you recommend one?

There are many good anti-virus applications available on the market.  The two major commercial scanners are McAfee Anti-Virus and Norton Anti-Virus.  There are also a number of free anti-virus applications available to download for personal use only such as AVG Anti-Virus.