1and1Mail can send mass emails, manage email contacts and design newsletters.1and1 Mail Features:Auto IP Switcher: Auto IP Switcher changes your IP address automatically based on your email service providers so that your email accounts can avoid being blacklisted and you can send more emails out per day. It is most helpful when you use multiple free email accounts to send mass emails, such as Gmail, Hotmail, Yahoo! Mail, AOL Mail, etc.Email Template Downloader: With 1and1Mail Email Template Downloader, you are able to download these templates directly to your local PC and use them in youremail marketing campaign to impress your clients. There is no need for import and export again. All pictures and layouts will be displayed exactly the same.Multi Account Manager: Multi Account Manager boosts the number of emails you can send out per day and reduce the risk of being considered as a spammer. It also improves your email deliverability and email open rates by accurate grouping and segmentation.WYSIWYG HTML Editor: WYSIWYG offers speed and ease of use to email newsletter building. It allows you to design your newsletters using a What You See Is What You Get interface - somewhat like a word-processor where you can see what your page will look like (mostly) as you type.Email Personalization: You can send out personalized messages to your customers in email subject, salutation and email body. As research shows, personalization of emails can significantly boost the open rate and response rate of the email campaign. That's exactly what you want, isn't it?Contact Management: 1and1Mail allows you to create unlimited groups of contacts in the address book. You can import email contacts from external files (.CSV,.TXT) and also export the contacts. You can also customize fields in theaddress book to meet your business needs.Free SMTP Delivery: The biggest advantage of on-premises email marketing software is that there is no charge per message sent. With a reasonable amount of investment, your can continuously grow your business through mass email campaigns.Schedule and Timing: The biggest disadvantage of on-premises email marketing software is that you may run into trouble of spamming and get banned by your ISP. However, by setting suitable values of schedule and sending frequency to your email campaigns, 1and1Mail is able to delivery your mails to your customers' inbox safely and accurately. Email campaign scheduling and timing is even available in 1and1Mail Free Edition! In the long run, we help you to save more money, compared with SaaS solution.Multi-threaded Sending: The multi-threaded mode of 1and1Mail allows multiple connections to mail servers. It can significantly increase the delivery speed by sending out different email campaigns at the same time without lowering the Inbox Placement Rate.