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Articles in this category
How to Recover Deleted Emails: Restoration Guide
Accidentally deleting an important e-mail can be frustrating. Fortunately, most e-mail services and applications offer options to recover these emails. Thi...
IMAP vs POP3: Which email protocol should you choose?
When setting up your email, you need to choose between IMAP and POP3. Both protocols retrieve your email from the server, but they work fundamentally diffe...
DKIM Check: Secure Your Email and Prevent Spam
DKIM stands for DomainKeys Identified Mail. It is an e-mail authentication protocol used to verify the integrity of the sender and content of the e-mail. D...
Email Setup Credentials: What Information You Need
Congratulations on your newly created email address! To use your email address at Theory7, you can use our webmail for this purpose at mail.theory7.net or...
Create Professional Email Signature in Outlook
A professional email signature can help you make a good impression on your clients, partners and colleagues. In Outlook, one of the most widely used e-mail...
Setting up SPF record: Prevent your email from being marked as spam
SPF (Sender Policy Framework) is an essential email authentication method that prevents your messages from being marked as spam. In this article, we explai...
How to Create an Email Address: Step by Step Guide
You've bought a domain name and a hosting package, congratulations! Now, of course, you want to start receiving and sending e-mails. To do this, you first...
Set Up Out of Office Reply in DirectAdmin Email
With Theory7.net, we make sure your emails continue to work professionally and smoothly, even when you're temporarily unavailable. An absence message (or a...
Email Settings and Ports for IMAP, POP3 and SMTP
Everyone has created or needs an email address. With almost any provider you can use webmail, but that is not always convenient. Of course you also want to...
Office 365 login: step-by-step sign-in guide
Office 365 login: the complete guide Logging in to Office 365 is the process that gives you access to all Microsoft 365 services, such as Outlook, Teams, W...
Email Attachment Size Limit and How to Change It
At Theory7 you can send email attachments of up to 100MB by default. That's generous, especially compared to other providers, where a limit of 25MB is comm...
Most common email problems [2025]!
For most people and businesses, email is an essential way to communicate. Whether you are sending a quick update to a colleague, need to send an important...
Set up email in Mozilla Thunderbird
Mozilla Thunderbird is a free, powerful email client for Windows, Mac, and Linux. In this guide, we explain how to set up your business email in Thunderbir...
Set Up Email in the macOS Mail App
You have created your email address, and now of course you also want to use it on your MacBook. We explain how to easily add your email address to the Mail...
What Is DMARC? Everything You Need to Know
Email fraud, phishing and spoofing are serious threats to businesses and users. DMARC (Domain-based Message Authentication, Reporting, and Conformance) hel...
SPF records: what they are and why they matter
Email fraud and spam are huge problems, and of course you don't want your emails to land in the spam folder or someone to abuse your domain name to send fa...
How to Set Up Email on iPhone and iOS
You have created your email address and of course you now want to get your mail on your iPhone as well. With these easy steps, you will have it done in no...
How to Add Your Email Address to Windows Mail
You've created your email address and of course you also want to access it on your Windows system. In the following steps we'll gladly explain how to do th...
What Is a Catch-All Email Address and How to Set It Up
Setting up a catch-all in DirectAdmin Follow these steps to set up a catch-all email address in DirectAdmin: 1. Log in to DirectAdmin Go to the control pan...
Roundcube complete guide: from beginner to expert
Roundcube is the most widely used open-source webmail client in the world. Almost every hosting provider offers Roundcube as its standard webmail interface...
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