Email

📄️ Are there limits to the sending of emails?

When sending emails via our SMTP server smtp.nine.ch, there is a limit to the number of recipients that can be sent within a certain time period. The limit is 60 recipients per 5 minutes.

📄️ Email Autodiscovery

Email Autodiscovery/Autoconfig is a service which allows the email client to discover the correct settings based on the email address. Email clients known to work with Autodiscovery/Autoconfig for IMAP/SMTP include

📄️ Enable encryption in Apple Mail

Open the Account preferences

📄️ Enable encryption in iOS Mail

Open Account Settings

📄️ Enable encryption in mail.google.com / GMail

Open the Settings page

📄️ Enable encryption in Outlook 2013

Open the Account Settings dialogue

📄️ Enable encryption in Thunderbird

Open the Mail Account Settings Dialog

📄️ How do I activate SMTP authentication in Apple Mail?

Here you can find a detailed manual how you can activate the SMTP authentification in Apple Mail.

📄️ How do I activate SMTP authentication in Outlook 2007?

Here you can find a detailed manual how you can activate the SMTP authentification in Outlook 2007.

📄️ How do I activate SMTP authentication on an iPhone?

Here you can find a detailed manual how you can activate the SMTP authentification on an iPhone.

📄️ How do I create SPF records?

With the help of an SPF entry, you can store the servers authorised to send emails for your domain(s) in the DNS system. The Sender Policy Framework (SPF) is intended to prevent the falsification of sender addresses for emails.

📄️ How do I manage my email addresses?

Email accounts and settings can be easily and conveniently configured via the web interface .

📄️ How do I set up an email account?

1. Dial into the mail administration with your main account (not with the mail address):

📄️ How do I set up e-mail forwarding?

E-mail forwarding can be easily set up and configured through the web interface .

📄️ Migrate Horde address book to Roundcube

Export Address book from Horde

📄️ Placeholder

Änderungen für Administrator

📄️ Setup email account in Apple Mail

Select account type

📄️ Setup email account in GMail / Android Mail

Open your Gmail App > Settings > Add account

📄️ Setup email account in iOS Mail

Open Add Account wizard

📄️ Setup email account in Outlook

Open Add Account wizard

📄️ Setup email account with Autodiscovery in Outlook

If Autodiscovery fails to configure your email account, please follow the workflow for Outlookt without Autodiscovery

📄️ Setup email in Thunderbird

Open the Mail Account Setup wizard

📄️ What are the MX entries?

If you are carrying out the DNS setting yourself, the correct MX entries are as follows:

📄️ What is greylisting?

Greylisting is a technique of eliminating spam sent by virus-infested zombie PCs. In order to differentiate the two, a temporary error is simulated. A real email server will handle this correctly and make a second attempt to deliver the email. Zombies, on the other hand, will simply discard the spam emails.

📄️ What is the maximum size for an e-mail?

An email message cannot be bigger than 25 MB. It is important to note that e-mail attachments are being encoded with Base64 and therefore grow by 36%. For example, a PDF with a size of 18 MB becomes a little more larger then 24 MB when sent as an e-mail attachment.

📄️ Which email server do I have to configure in my program?

For setting up your email account use the whole email address as username. For connection settings of incoming and outgoing servers please refer to the following table. For often used email clients links to detailed setup instructions are provided further down on this page.