Problem
Looking for a list of outgoing SMTP servers?
Solution
An outgoing SMTP mail server handles all outbound emails and delivers that email to its end destination (the incoming email server). ISPs (Internet Service Providers) and MSPs (Managed Service Providers) like us will publish their outgoing SMTP server information for their end-users.
We have complied a list of those servers below, but of course if there is one missing then please let us know. There is an add button at the bottom of the page.
Although this page is focused on outgoing SMTP server information, where available we have added the incoming (POP3 and IMAP) details as well.
outMail is an outgoing SMTP relay service also known as an SMTP SmartHost service.
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| mxXXXXX.smtp-engine.com | SMTP | 25 | Auth, StartTLS, SSL |
| SMTP | 465 | Auth, SSL | |
| SMTP | 587 | Auth, StartTLS, SSL | |
| SMTP | 2525 | Auth, StartTLS, SSL | |
| SMTP | 8025 | Auth, StartTLS, SSL |
Notes
Of course we would put outMail at the top of the list when its our service ;-)
outMail has published SPF records, and supports DKIM signing. outMail is an authenticated service offering SMTP on ports 25, 465, 587, 2525 & 8025. outMail also supports sending emails via RESTful API and also supports Microsoft 365 as a send connector.
mxXXXXX is an assigned server, so you need to refer to your welcome documentation for the exact information or look it up in the management portal.
Looking for 1&1 (also known as 1and1, IONOS and Schlund) hosted email server settings?
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| pop.1and1.com | POP3 | 995 | SSL |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| smtp.1and1.com | SMTP | 587 | StartTLS |
Looking for BT Connect hosted email server settings?
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| mail.btconnect.com | POP3 | 110 |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| mail.btconnect.com | SMTP | 25 |
Looking for BT Openworld hosted email server settings?
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| mail.btopenworld.com | POP3 | 110 |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| mail.btopenworld.com | SMTP | 25 |
Looking for BT Internet hosted email server settings?
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| mail.btinternet.com | POP3 | 110 |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| mail.btinternet.com | SMTP | 25 |
The UKs network EE since May 2017 no longer offer their own SMTP servers for customers. We have a number of customers using the outMail SMTP service on the EE network .
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| Service wasn't offered | --- | --- | --- |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| Service no longer offered since May 2017 | --- | --- | --- |
Looking for GMail hosted email server settings?
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| pop.gmail.com | POP3 | 995 | SSL only |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| smtp.gmail.com | SMTP | 465 | SSL |
| smtp.gmail.com | SMTP | 587 | Start TLS |
Notes
GMail has published SPF records.
Looking for Hotmail.com email server settings?
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| outlook.office365.com | POP3 | 995 | SSL/TLS |
| outlook.office365.com | IMAP | 993 | SSL/TLS |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| smtp.office365.com | SMTP | 587 | StartTLS |
Notes
Hotmail.com (aka live.com and outlook.com) has published SPF records.
Looking for Live.com email server settings?
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| outlook.office365.com | POP3 | 995 | SSL/TLS |
| outlook.office365.com | IMAP | 993 | SSL/TLS |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| smtp.office365.com | SMTP | 587 | StartTLS |
Notes
Live.com (aka hotmail.com and outlook.com) has published SPF records.
Looking for Livemail.co.uk email server settings?
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| mail.livemail.co.uk | POP3 | 995 | SSL |
| mail.livemail.co.uk | IMAP | 993 | SSL |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| mail.livemail.co.uk | SMTP | 587 | StartTLS |
Notes
Livemail.co.uk is an authenticated server, so you need to use the same username and password for the outgoing SMTP gateway as you did for the incoming gateway.
Looking for O2 UK hosted email server settings?
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| pop.o2.co.uk | POP3 | 110 |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| smtp.o2.co.uk | SMTP | 25 |
Looking for Outlook.com (formerly Hotmail) hosted email server settings?
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| outlook.office365.com pop3.live.com being deprecated |
POP3 | 995 | SSL only |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| smtp.office365.com smtp.live.com being deprecated |
SMTP | 587 | StartTLS |
Notes
Outlook.com (aka live.com and hotmail.com) has published SPF records.
Looking for Office 365 hosted Exchange email server settings?
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| outlook.office365.com | POP3 | 995 | SSL |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| smtp.office365.com | SMTP | 587 | StartTLS |
Notes
Office 365 has published SPF records. By default POP3 or IMAP access isn't enabled. To enable these protocols you need to log into the WebAccess (OWA) and goto Settings -> Options -> Account -> My Account -> Settings for POP and IMAP access.
Office 365 is ideally suited to work with their Outlook365 client.
In order to use Office 365 you must first add several DNS entries for your domain name, this includes adding their published SPF record to your own SPF record.
Looking for Orange Mobile hosted email server settings?
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| pop.orange.co.uk | POP3 | 110 |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| smtp.orange.co.uk | SMTP | 25 |
Looking for MSN email server settings?
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| pop-mail.outlook.com | POP3 | 995 | SSL/TLS |
| imap-mail.outlook.com | IMAP | 993 | SSL/TLS |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| smtp-mail.outlook.com | SMTP | 587 | StartTLS |
Below is NTLWorld's hosted email server settings.
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| pop.ntlworld.com | POP3 | 995 | SSL |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| smtp.ntlworld.com | SMTP | 465 | SSL |
The UKs network Three used to have their own SMTP servers for customers but they now use Office365 services.
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| Service wasn't offered | --- | --- | --- |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| smtp.three.co.uk now CNAME'd to office365.com See section above for details. |
SMTP | --- | --- |
Below is Yahoo Mail's POP and SMTP email server settings.
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| pop.mail.yahoo.com | POP3 | 995 | SSL |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| smtp.mail.yahoo.com | SMTP | 587 | StartTLS |
Notes
Yahoo has published SPF records.
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| plus.pop.mail.yahoo.com | POP3 | 995 | SSL |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| plus.smtp.mail.yahoo.com | SMTP | 587 | StartTLS |
Notes
Yahoo has published SPF records.
Below is Yahoo UK hosted email server settings.
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| pop.mail.yahoo.co.uk | POP3 | 995 | SSL |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| smtp.mail.yahoo.co.uk | SMTP | 587 | StartTLS |
Notes
Yahoo has published SPF records.
Below is Virgin Media hosted email server settings.
Incoming Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| imap.virginmedia.com | IMAP4 | 993 | SSL |
Outgoing Server
| Server | Protocol | Port | Notes |
|---|---|---|---|
| smtp.virginmedia.com | SMTP | 465 | SSL |
Notes
Virgin Media has published SPF records.
Not found the SMTP server you were looking for?
If you know the details of a server that is missing from the list and would like it added to the list then please click the "e;Add Server"e; button below.
