Sold by: Last Bastion Network Pty Ltd
Deployed on AWS
AWS Free Tier
Courier MTA mail server
Overview
The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open commodity protocols, such as ESMTP, IMAP, POP3, LDAP, SSL, and HTTP. Courier provides ESMTP, IMAP, POP3, webmail, and mailing list services within a single, consistent, framework. Individual components can be enabled or disabled at will.
Highlights
- * MTA
- * IMAPS
- * POP3S
Details
Sold by
Delivery method
Delivery option
64-bit (x86) Amazon Machine Image (AMI)
Latest version
Operating system
OtherLinux BastionLinux.36
Deployed on AWS
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Introducing multi-product solutions
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Features and programs
Financing for AWS Marketplace purchases
AWS Marketplace now accepts line of credit payments through the PNC Vendor Finance program. This program is available to select AWS customers in the US, excluding NV, NC, ND, TN, & VT.
Pricing
Pricing is based on actual usage, with charges varying according to how much you consume. Subscriptions have no end date and may be canceled any time. Alternatively, you can pay upfront for a contract, which typically covers your anticipated usage for the contract duration. Any usage beyond contract will incur additional usage-based costs.
Additional AWS infrastructure costs may apply. Use the AWS Pricing Calculator to estimate your infrastructure costs.
If you are an AWS Free Tier customer with a free plan, you are eligible to subscribe to this offer. You can use free credits to cover the cost of eligible AWS infrastructure. See AWS Free Tier for more details. If you created an AWS account before July 15th, 2025, and qualify for the Legacy AWS Free Tier, Amazon EC2 charges for Micro instances are free for up to 750 hours per month. See Legacy AWS Free Tier for more details.
Dimension | Cost/hour |
|---|---|
m5.large Recommended | $0.028 |
t3.micro | $0.003 |
u-3tb1.56xlarge | $6.825 |
dl1.24xlarge | $3.277 |
r5.2xlarge | $0.14 |
m7i-flex.xlarge | $0.056 |
r5d.4xlarge | $0.324 |
m5.12xlarge | $0.672 |
r6a.large | $0.032 |
r6in.24xlarge | $2.092 |
Dimensions summary
You pay by the hour for the running instance, with no upfront commitment. The single price variable is the EC2 instance type you choose to run the Courier mail transfer agent software. Each dimension maps to a specific instance size and family, from small burstable types like t3.micro up to memory-, compute-, storage-, and accelerator-optimized machines such as r7iz, c7i, x2idn, and multi-terabyte u7i types. Larger or specialized instances carry higher hourly rates. Pick the instance that fits your workload; your cost scales with instance size and hours run.
Top-of-mind questions for buyers
You get the Courier mail transfer agent software running on the EC2 instance size you select. It ships preconfigured with anti-spam, anti-virus, and login rate-limiting tools. The hourly rate covers the software licence; the underlying EC2 compute is billed separately by AWS.
Hourly software charges apply only while the instance runs. A fully stopped instance stops accruing software charges. Note that stopped instances may still incur AWS storage fees for attached volumes, but the Courier software meters running hours only.
Yes. Each instance type maps to its own hourly rate. Moving from a small burstable type like t3.micro to a memory- or accelerator-optimized type raises your hourly cost. The change takes effect when you launch the new instance; you are not charged for both at once.
docs.last-bastion.net
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Vendor refund policy
The instance can be terminated at any time to stop incurring charges.
Legal
Vendor terms and conditions
Upon subscribing to this product, you must acknowledge and agree to the terms and conditions outlined in the vendor's End User License Agreement (EULA) .
Content disclaimer
Vendors are responsible for their product descriptions and other product content. AWS does not warrant that vendors' product descriptions or other product content are accurate, complete, reliable, current, or error-free.
Delivery details
64-bit (x86) Amazon Machine Image (AMI)
Amazon Machine Image (AMI)
An AMI is a virtual image that provides the information required to launch an instance. Amazon EC2 (Elastic Compute Cloud) instances are virtual servers on which you can run your applications and workloads, offering varying combinations of CPU, memory, storage, and networking resources. You can launch as many instances from as many different AMIs as you need.
Version release notes
GCC compatibility fixes
Upgrade Steps
You may upgrade your instance using the following command from the shell:
$ dnf update courier
Additional details
Usage instructions
- Start an instance with 1-Click, or optionally using your cloud provider's web/console
- Have just a little patience: it does take a couple of minutes for all the background services to start up in your instance. If you get connection refused or site error messages - just wait a moment
- Visit the admin portal via web browser https://your IP address or public DNS/webadmin.pl - the login username is admin and the password is your instance id.
https://docs.last-bastion.net/marketplace/products/devops/courier.html#quickstart
Status Checks
Your product (and all supporting processes) is monitored and restarted via our monit suite. You can verify everything is 'OK' with the following:
$ monit summary
Sensitive Information
courier contains no cryptographically stored data and does not perform any encryption at rest.
Local X509 PKI may be utilised to manage network-based TLS. All certificates and keys are stored locally in /etc/pki and it is completely at your discretion to regenerate any of these at any time; the product will transparently operate on any consistent set of configured keys.
courier ships with openssl, step-cli and other popular tools to facilitate certificate regeneration.
Documentation
Visit https://docs.last-bastion.net/marketplace/products/devops/courier.html
SSH Connectivity
The SSH user for your instance is ec2-user. You can connect by using the private key of the key pair you launched the instance with:
$ ssh --identity </path/to/private key.pem> ec2-user@<EC2_Instance_Public_DNS>
Resources
Vendor resources
Support
Vendor support
We take support very seriously.
Your system is provisioned with an entitlement to our Yum repositories for software patches and in-place operating system and product upgrades .
You may raise support requests at https://entitlements.last-bastion.net/support/form . Visit https://docs.last-bastion.net/support/index.html for more information on how to get help.
AWS infrastructure support
AWS Support is a one-on-one, fast-response support channel that is staffed 24x7x365 with experienced and technical support engineers. The service helps customers of all sizes and technical abilities to successfully utilize the products and features provided by Amazon Web Services.
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