Outlook Setup

Use this page to set up COG Mail in Outlook. New Outlook for Windows may require extra steps. Classic Outlook is the most reliable Outlook option for manual IMAP setup.

Recommended First Choice

For the smoothest COG Mail experience, we recommend Thunderbird, COG Mail Workspace, or the iPhone / iPad setup profile. These options work better with mail, calendar, and contacts.

Outlook can still be used for email, but New Outlook for Windows may require extra manual steps. If you are set on using Outlook, follow the instructions below.

Open Thunderbird Setup | Open COG Mail Workspace | Open iPhone / iPad Setup

Important: New Outlook for Windows

New Outlook may ask you to select a provider such as Microsoft 365, Outlook.com, Gmail, Yahoo, or iCloud. COG Mail is not Microsoft 365. If your mailbox is hosted by COG Mail, do not choose Microsoft 365 unless your mailbox was actually moved to Microsoft 365.

If New Outlook asks for a provider, look for IMAP, Other, or Advanced setup. If New Outlook refuses the account, use Classic Outlook, Thunderbird, Apple Mail, iPhone/iPad profile setup, or COG Mail Workspace.

Recommended Outlook Path

Open Outlook.
Enter your full COG Mail email address.
If prompted for provider, choose IMAP or Other.
Use cogmail.tech for incoming and outgoing mail servers.
Use your full email address as the username.

Best COG Mail Experience

Outlook can be used for mail. For the best mail, calendar, and contacts experience, use:

COG Mail Workspace
iPhone / iPad profile setup
Thunderbird setup
Apple Mail or another CalDAV/CardDAV-capable client

Manual Outlook Settings

Incoming Mail

Server: cogmail.tech

Protocol: IMAP

Port: 993

Encryption: SSL/TLS

Outgoing Mail

Server: cogmail.tech

Protocol: SMTP

Port: 587

Encryption: STARTTLS

Alternate Outgoing Mail

SMTP Server: cogmail.tech, Port: 465, Encryption: SSL/TLS

Username

Use your full email address, for example: user@example.com

Classic Outlook Instructions

Open Classic Outlook.
Go to File.
Select Add Account.
Enter your COG Mail email address.
Choose Advanced options.
Check Let me set up my account manually.
Select IMAP.
Enter the incoming and outgoing settings shown above.

New Outlook Instructions

Open New Outlook.
Add account.
Enter your COG Mail email address.
If Outlook asks you to select an email provider, scroll and choose IMAP, Other, or Advanced setup.
If Outlook offers only Microsoft 365, Outlook.com, Gmail, Yahoo, or iCloud, do not choose Microsoft 365 unless the mailbox is actually hosted by Microsoft.
If New Outlook fails with a generic troubleshooting message, use Classic Outlook or COG Mail Workspace.

Known New Outlook Limitation

New Outlook for Windows may route third-party IMAP setup through Microsoft's cloud service. If that cloud setup fails, the issue may occur before Outlook reaches the COG Mail server.

COG Mail can provide correct IMAP, SMTP, DNS, Autodiscover, and ActiveSync endpoints, but New Outlook may still reject or mishandle some custom-domain IMAP accounts.

Calendar and Contacts

Outlook with IMAP usually handles mail only. For calendar and contacts, use one of these:

COG Mail Workspace
iPhone / iPad profile setup
Thunderbird with CalDAV/CardDAV
Manual CalDAV URL: https://cogmail.tech/.well-known/caldav
Manual CardDAV URL: https://cogmail.tech/.well-known/carddav

Quick Copy Settings

Incoming IMAP:
Server: cogmail.tech
Port: 993
Encryption: SSL/TLS
Username: full email address

Outgoing SMTP:
Server: cogmail.tech
Port: 587
Encryption: STARTTLS
Username: full email address

Alternate SMTP:
Server: cogmail.tech
Port: 465
Encryption: SSL/TLS

Calendar:
https://cogmail.tech/.well-known/caldav

Contacts:
https://cogmail.tech/.well-known/carddav