You can connect to a Mailosaur inbox using standard email protocols: SMTP, POP3, and IMAP. This is useful for integrating Mailosaur with email clients, legacy systems, or applications that send or retrieve email via these protocols.

These protocols are only for pushing or pulling content into and out of your Mailosaur inbox. They do not send email to external recipients.

Plan availability

SMTP is available on all plans.
POP3 and IMAP require the Business or Enterprise plan.

View connection details

Navigate to the inbox you want to connect to.
Click the Connect tab.

The page displays connection details for each protocol. You must have Writer or Admin privileges on the inbox to reveal the password.

Connection security

Each protocol offers a dropdown where you choose how to connect:

Use SSL to connect (recommended)
StartTLS
None

SMTP

Use these settings to send email via SMTP to your Mailosaur inbox.

Setting	Description
SMTP outgoing server	The hostname to connect to
Port	The port number (varies by security setting)
Username	Your inbox-specific username
Password	Click Reveal password to view

POP3

Use these settings to retrieve email from your Mailosaur inbox using POP3.

Setting	Description
POP3 incoming server	The hostname to connect to
Port	The port number (varies by security setting)
Username	Your inbox-specific username
Password	Click Reveal password to view

IMAP

Use these settings to retrieve email from your Mailosaur inbox using IMAP.

Setting	Description
IMAP incoming server	The hostname to connect to
Port	The port number (varies by security setting)
Username	Your inbox-specific username
Password	Click Reveal password to view