Terms and Conditions

By registering for, accessing, or using Altermail (the "Service"), you agree to be bound by these Terms and Conditions ("Terms"). If you do not agree to all of these Terms, you must not use the Service.

These Terms apply to all visitors, registered users, and anyone who accesses or makes use of the Service in any way. Your continued use of the Service after any changes to these Terms constitutes your acceptance of the revised Terms.

To use the Service, you must:

• Be at least 18 years of age or the age of majority in your jurisdiction.
• Have the legal authority to enter into a binding contract.
• Provide accurate, current, and complete information during registration and keep it updated.
• Not be located in a country subject to an embargo or sanctions that would prohibit your use of the Service.

Altermail is primarily designed for businesses and developers operating in Nigeria and other markets where Paystack payment processing is available. We reserve the right to refuse service to anyone for any reason at any time.

You must create an account to access the Service. During registration you will be asked to provide a business email address, password, company name, and contact details. You are responsible for:

• Keeping your API token and password confidential.
• All activity that occurs under your account.
• Notifying us immediately at support@altermail-console.com.ng if you suspect unauthorised access.

We will not be liable for any loss or damage arising from your failure to maintain the security of your account credentials. You may not share your API token with third parties or use another user's account without their explicit permission.

Each account is issued a single API token. If you believe your token has been compromised, you can regenerate it at any time from the Overview section of your dashboard. Any previously issued token will be invalidated immediately upon regeneration.

Altermail is an email service provider that allows registered users to send transactional and bulk marketing emails programmatically via a REST API or SMTP. Core features include:

• Sending HTML and plain-text emails via a JSON REST endpoint.
• Bulk email campaigns to up to 50,000 recipients per job.
• Domain verification using DNS TXT records and DKIM signing.
• CC, BCC, Reply-To, and attachment support per message.
• Subscription-based and Pay-As-You-Go (PAYG) email quota models.
• Email template management via the dashboard.
• Delivery events, error logging, and bounce suppression.
• A one-time proof-of-concept send using our shared domain before you verify your own domain.

The Service is provided "as-is" and features may change over time. We will make reasonable efforts to communicate significant changes via email or dashboard notice.

You may use Altermail for lawful email communications, including:

• Order confirmations, receipts, and invoices.
• Password reset and account verification emails.
• Notifications triggered directly by user actions on your platform.
• System alerts and operational status updates.
• Newsletters, promotions, and marketing campaigns sent to opted-in recipients.
• Other transactional or relationship-based communications.

You must not use the Service to:

• Send unsolicited bulk email (spam), promotional campaigns, or marketing messages to recipients who have not opted in.
• Send content that is unlawful, defamatory, harassing, obscene, fraudulent, or violates the rights of any third party.
• Transmit malware, viruses, or any malicious code via attachments or email body.
• Impersonate another person or entity, or send emails using domains you do not own or are not authorised to use.
• Circumvent email sending limits, rate limiters, or quota systems, including by creating multiple accounts.
• Engage in phishing, spoofing, or any deceptive email practice.
• Use the Service in a way that degrades performance or availability for other users.
• Resell, redistribute, or sublicense access to the Service without explicit written permission from Altermail.
• Send emails with executable or script file attachments including .exe, .dll, .bat, .cmd, .ps1, .js, .jar, .vbs, .scr, and similar file types.

Violation of these prohibitions may result in immediate suspension or permanent termination of your account without refund.

By using the send API, you agree to the following constraints:

Recipients per request

Each API call may address a maximum of 50 total recipients (To + CC + BCC combined). Requests exceeding this limit will be rejected.

Rate limiting

A sliding-window rate limit of 60 API requests per minute applies per API token. Exceeding this limit will result in a 429 response. A global rate limit also applies to the API as a whole.

Monthly and daily quotas

Email sends are counted per recipient and charged against your monthly quota. Free plan accounts are additionally subject to a daily sending limit. Quota usage resets at the start of each billing period.

Attachments

A maximum of 10 attachments per email is permitted. The combined size of all attachments must not exceed 25 MB. Attachments with potentially dangerous file extensions are blocked entirely.

Email body size

HTML and plain-text body content is each limited to 500 KB per request.

Subject line

Subject lines must not exceed 998 characters (RFC 2822).

Domain verification

You must verify ownership of any domain you use as a sender address before sending. Sends from unverified domains will be rejected. We strongly recommend also configuring SPF and DKIM for your domain to maximise deliverability.

Proof-of-concept send

Each account is entitled to one free proof-of-concept send using our shared domain (proof-of-concept@altermail-console.com.ng). This is a one-time allocation that cannot be repeated or transferred.

We monitor hard-bounce rates to protect the health of our sending infrastructure and the reputation of all users.

Hard bounce suppression

When an email permanently fails to deliver (a hard bounce), the recipient address is automatically added to a suppression list and future sends to that address will be rejected. You are responsible for maintaining clean, opt-in recipient lists and must not attempt to circumvent suppression.

Warning milestones

We will notify you by email when your account reaches 5, 10, and 15 cumulative hard bounces. These warnings are sent to the email address on your account.

Suspension threshold

Accounts that accumulate 20 or more hard bounces will be automatically suspended. While suspended, all send requests will be rejected with a 403 error. To appeal a suspension, contact support@altermail-console.com.ng.

You acknowledge that maintaining a low hard-bounce rate is your responsibility. Altermail reserves the right to adjust suspension thresholds at any time to protect the infrastructure.

Subscription plans

Paid subscription plans are billed monthly in Nigerian Naira (NGN) through Paystack. Your plan's monthly email quota renews at the start of each billing period. Subscription fees are non-refundable except as required by applicable law.

Pay-As-You-Go credits

PAYG credit bundles are purchased as a one-off payment and credited to your account immediately. Credits carry over between billing periods and do not expire while your account remains active. Credits are consumed after your monthly quota is exhausted.

Auto-renewal

Where you have a saved payment card, subscription plans will auto-renew at the end of each billing period. You may cancel auto-renewal at any time from the Billing section of your dashboard. Cancellation takes effect at the end of the current billing period and you retain access to your paid quota until then.

Free plan

The free plan is available for your first 3 monthly billing periods on Altermail, providing a limited monthly and daily email quota at no charge. All features including domain verification, DKIM, templates, and the full API are available during the free period, subject to quota limits. After your 3rd free period ends, sending is paused until you subscribe to a paid plan or purchase Pay-As-You-Go credits — your account, domains, templates, and data are all preserved, and sending resumes immediately once you upgrade.

Free plan eligibility and domain reuse

To prevent abuse of repeated free trials, a sender domain that has been removed from an account cannot automatically be re-verified on a different account. If you have lost access to an account and need to reclaim a domain for a new one, contact support@altermail-console.com.ng. Domains reassigned this way do not receive a new free trial period and must be used on a paid plan or with Pay-As-You-Go credits.

Price changes

We reserve the right to change plan pricing with at least 14 days' notice. Continued use of a paid plan after a price change takes effect constitutes acceptance of the new price.

Failed payments

If a subscription renewal payment fails, your account will revert to the free plan at the end of your current billing period. Unused quota from the paid period will not carry over.

Subscription fees are non-refundable once a billing period has begun. PAYG credit bundles are non-refundable once purchased. If you believe a charge was made in error, contact us within 7 days of the charge at support@altermail-console.com.ng and we will investigate and, where appropriate, issue a credit or refund at our discretion.

Refunds are not available for accounts suspended or terminated due to violation of these Terms.

Altermail operates a referral programme that rewards you with PAYG email credits when users sign up using your referral code and make a qualifying payment. Referral credits are applied to your account automatically once the qualifying condition is met.

You may not engage in fraudulent referral activity, including creating fake accounts or using automated systems to generate referral signups. We reserve the right to revoke referral credits and suspend accounts found to be abusing the programme.

We collect and process personal data as described in our Privacy Policy. By using the Service you consent to such processing. Key points:

• We store your account details (name, email, billing information) to provide and bill the Service.
• We do not store the body or attachments of emails you send through the Service beyond what is necessary for delivery.
• Suppressed email addresses are stored in our suppression list to prevent repeat delivery attempts to hard-bounced addresses.
• We may share data with Paystack for payment processing and with infrastructure providers necessary to deliver the Service.

You are responsible for ensuring that your use of the Service complies with applicable data protection laws, including obtaining any necessary consent from your email recipients.

Altermail and all related trademarks, logos, service names, and software are the intellectual property of Altermail and its licensors. Nothing in these Terms grants you any right to use our name, trademarks, or branding without our express prior written consent.

You retain ownership of all content you transmit through the Service, including email bodies, subject lines, and attachments. By using the Service, you grant Altermail a limited, non-exclusive licence to process and transmit that content solely as necessary to provide the Service.

No warranty

The Service is provided "as is" and "as available" without warranty of any kind, whether express or implied, including warranties of merchantability, fitness for a particular purpose, or non-infringement. We do not guarantee that the Service will be uninterrupted, error-free, or that every email will be delivered.

Deliverability

Email deliverability depends on many factors outside our control, including recipient server policies, spam filters, DNS configuration, and sender reputation. We are not liable for emails that are filtered, delayed, or rejected by third-party mail servers.

Limitation of liability

To the maximum extent permitted by applicable law, Altermail shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including loss of profits, data, or business opportunities, arising from your use of or inability to use the Service. Our total cumulative liability to you for any claim arising under these Terms shall not exceed the amount you paid to us in the three months preceding the claim.

You may close your account at any time by contacting support@altermail-console.com.ng. Upon account closure, your data will be deleted in accordance with our data retention policy.

Altermail may suspend or terminate your account at any time, with or without notice, if we believe you have violated these Terms, engaged in fraudulent activity, or created risk or legal exposure for us or other users. In cases of serious violations, termination will be immediate and no refund will be issued.

Sections relating to intellectual property, disclaimers, limitation of liability, and governing law survive termination of these Terms.

We reserve the right to modify or discontinue any part of the Service at any time. We will make reasonable efforts to notify you of material changes to these Terms via email or an in-dashboard notice at least 14 days in advance, where practical. Your continued use of the Service after the effective date of any change constitutes your acceptance.

These Terms are governed by the laws of the Federal Republic of Nigeria. Any dispute arising out of or relating to these Terms or the Service shall first be attempted to be resolved amicably by contacting us at support@altermail-console.com.ng. If a resolution cannot be reached within 30 days, the dispute shall be subject to the exclusive jurisdiction of the courts of Nigeria.

If you have any questions about these Terms, please contact us:

• Email: support@altermail-console.com.ng
• Website: altermail-console.com.ng