📄️ 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.
📄️ DKIM
DKIM is a mechanism with which outgoing emails are signed by the mail server. Recipients can check whether an email was actually sent from the correct server or not.
📄️ DMARC
DMARC (Domain-based Message Authentication, Reporting and Conformance) aims to improve email security. DMARC itself does not offer a protection mechanism, but the option to define a policy that specifies what should happen to emails that neither pass SPF nor DKIM checks.
📄️ 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
📄️ How do I manage my email addresses?
Email accounts can be configured via the Mailadmin web interface. Only email administrators can login here.
📄️ 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 .
📄️ SPF
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.
📄️ 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.
📄️ Which webmail programs are available?
To access your Mailaccount using a webbrowser we provide you our Webmail client (https://mail.nine.ch). Using the webmail client you can write and send mails like you can in a local mail programm
📄️ Why can I no longer send emails?
Customers with a Swisscom internet connection may suddenly find that emails are no longer being sent correctly.
📄️ Why do I receive a warning that my mailbox is full even though I only have a few emails in my email program?
Have you received a notification stating that your mailbox is full or almost full? Please proceed as follows: