SMTP.com

There are 7 types of domains: generic top-level domains (gTLDs), country code top-level domains (ccTLDs), sponsored top-level domains (sTLDs), second-level domains (SLDs), third-level domains, subdomains, and internationalized domain names (IDNs). Understanding these domain types helps you make smarter decisions about how you register, configure, and use domains for your webs...

Port 445 is used for SMB (Server Message Block), a protocol that lets computers share files, printers, and other resources over a network. Port 389 is used for LDAP (Lightweight Directory Access Protocol), which handles directory lookups, user authentication, and access control in networked environments. Both ports are fundamental to how Wind...

Port 445 is commonly used for SMB (Server Message Block) file sharing and network communication over TCP/IP. It allows computers on a network to share files, printers, and other resources without needing NetBIOS as an intermediary. Understanding how port 445 works matters whether you’re managing a network, tightening security, or troubleshooting connectivity ...

Domain verification in email sending is the process of proving that you own or control the domain you’re sending email from. Email providers and receiving mail servers use this verification to confirm that messages claiming to come from your domain are actually authorized by you. It works through a set of DNS records that authenticate your sending identity before any message ...

Yes, you can send email without MX records on your sending domain. MX records control where incoming mail is delivered, not where outgoing mail goes. As long as your sending infrastructure is correctly configured with the right DNS records for authentication, your emails will reach recipients just fine. Below, we break down exactly what MX records do, what you actual...