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Valid for IONOS Mail Basic and IONOS Mail Business.
Important information regarding the sending of emails with a different sender address
From January 29, 2024,different sender addresses will only be permitted if they use the same sender domain. If this is not the case, the email will be rejected by our SMTP server for security reasons. Further information can be found in the following article: Important Change for Sending Emails with Different Sender Addresses
In this article, you will find information about the IONOS mail servers to help you set up your email program or app.
Login details for IONOS Mail
| Settings | IMAP | POP3 |
|---|---|---|
| Server | imap.ionos.co.uk | pop.ionos.co.uk |
| Port | 993 | 995 |
| Connection type / Encryption | SSL/TLS | SSL/TLS |
IMAP and POP3 are two different methods for retrieving and managing emails. If you manage your emails using an email client, you will need to choose between IMAP and POP3 when setting up your account in the email client.
- IMAP stores emails centrally on the server and automatically synchronises their status (read, unread, deleted) across all devices.
- POP3 typically downloads emails from the server to a local device just once and then often deletes them from the server, meaning there is no automatic synchronisation.
We recommend using IMAP.
To use IMAP, enter the IMAP settings from Table 1 into the Incoming server section of your email program.
For further information, see the article Differences between IMAP and POP3.
| Settings | SMTP |
|---|---|
| Server | smtp.ionos.co.uk |
| Port | 465 |
| Connection type / Encryption | SSL/TLS |
Login details for IONOS Mail
To send and receive emails, you must log in to the mail server using your username and password. For IONOS email accounts, use the following login details in your email program:
| Input field | Your entry | |
|---|---|---|
| Username | Your email address, e.g. john.doe@example.com | |
| Password | The password for your email address |
Notes
To check that your login details are correct, you can log in to webmail via IONOS as a test.
Each email address has its own password.
If you have forgotten the password for an email address, you will need to set a new password. For further information, please see the following article: Changing an IONOS Email Account Password
Guides for email programs
Our step-by-step guides will help you set up popular email programs and apps. You can find an overview of the available guides in the following article:
Setting up an email client for your IONOS email address
Alternatively, use SMTP port 587
If your email program is unable to connect to the outgoing mail server, even though all the details are correct, access to port 465 may be blocked on your network. In this case, IONOS offers port 587.
To switch your email program to port 587:
- Launch your email program.
- Go to the outgoing mail server settings.
- Change the port from 465 to 587.
Adjust the encryption settings.
Thunderbird: Change the encryption setting from SSL/TLS to STARTTLS.
Outlook 2016/2019: Set the SMTP connection type to TLS.
Outlook (Microsoft Office 365): Change the SMTP connection type to STARTTLS.
Gmail app: Change the SSL/TLS encryption setting to STARTTLS.
Hosted Microsoft Exchange
If you use Hosted Microsoft Exchange from IONOS and wish to access your Exchange mailbox via IMAP or POP3, you will need to enter the details of our Exchange server into your email program. Please refer to the article Setting Up Microsoft Exchange® as an IMAP or POP3 Account.
Further information
Forgotten your password: If you have forgotten the password for your email account, you will need to reset it. Information on how to do this is provided in the following article:
Changing an IONOS Email Account Password.Setting up your email program: Do you need help setting up your email program?
You can find our step-by-step guides in the following article:
Setting up an email client for your IONOS email addressEmail client setup fails: If you receive an error message whilst setting up your email client, please read the following article:
Troubleshoot Issues During Setup of an Email Program