Free email settings lookup for POP3, IMAP and SMTP

Frequently Asked Questions

How does email work?

When you send an email, your computer talks to the mail server at your email provider using SMTP. When the mail server receives your email, it contacts a DNS server to look up the IP address of the domain of the email to find out where the email is meant to be sent. Then it asks if the domain has any MX or mail exchange servers on it. With this info, the message is sent from your mail server to the recipients MX server. This server decides where to put your email, so the recipient can download the email usually using POP3, IMAP or just having it displayed in webmail.

What is spam?

Spam is the unsolicited sending of email to users who don't want to receive it.

How to get rid of spam?

Use MailWasher Pro www.firetrust.com/products/mailwasher-pro

What is POP3?

Post Office Protocol: Once messages are downloaded to your computer, they're removed from the mail server (unless the option is selected to keep messages on the server). Folders are local to the computer the email is downloaded to.

What is IMAP?

Internet Message Access Protocol: All messages are kept on the server so multiple clients can access the email messages always. Messages can be marked as Read or Unread and the the changes are sync'd across all clients. Folders are stored on the mail server.

What is SMTP?

Simple Message Transfer Protocol: A protocol for how mail servers communicate with each other to deliver email.

What is a domain?

A domain simply put is the part after the @ in your email address. eg the domain for [email protected] is gmail.com

What is a port?

A point at which information flows from a program on your computer to another computer on the internet.

What is SSL?

Secure Sockets Layer: Technology for establishing an encrypted link between a client and server.

What is TLS?

Transport Layer Security: Successor to SSL.

What is STARTTLS?

A way to take an existing insecure connection and upgrade it to SSL/TLS.

What is an app specific password?

A unique email password that is specific to each application. i.e. The password generated for Outlook, won't work with a different Mail program.

What is OAUTH?

A way to verify a password without it being stored on the users computer.

What is DNS?

Domain Name Server: Like a phone book - But a server which maintains a directory of domain names and translates them to IP addresses, becuase it's easier to remember a domain name than numbers.

What is an MX record?

Information that specifies a mail server for accepting email messages.

What is an IP address?

Unique numbers which specify each computer using the internet to communicate. eg. 56.109.187.45

What is TCP?

Transmission Control Protocol: A way to transmit data across the internet using reliability to make sure packets of information are sent and received properly.

What is UDP?

User Datagram Protocol: A way to transmit data across the internet without any reliability. UDP is generally faster as the packets of data are smaller.

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emailsettingslookup
Over 20,000 email settings

Need the email settings for your phone or email program?

Enter your email address below. (Your email address will not be stored.)

INCOMING SERVER	IMAP	POP3
Username:	...	mail.optimus.pt
Server Hostname:	...	pop.mail.optimus.pt
Server Port:	...	110
SSL/TLS:	...	None
Authentication:	Password	Password

OUTGOING SERVER	SMTP
Username:	mail.optimus.pt
Server Hostname:	mail.mail.optimus.pt
Server Port:	25
SSL/TLS:	None

We do not store or share your details. Your email address is only used to search for email settings for that domain.

Found a mistake? Please email [email protected] so we can fix it.
Access the API to get updated email settings for your app/software.
Example: https://emailsettings.firetrust.com/[email protected]

Need the email settings for your phone or email program?

Enter your email address below. (Your email address will not be stored.)

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