Sending limits and how they affect deliverability

Sending limits and deliverability are closely linked. Dirham A Day applies per-mailbox hourly sending limits partly to protect the whole server's reputation - if one account could blast unlimited mail, a single compromised mailbox could get the server blacklisted, harming everyone.

How limits help deliverability:

• They prevent a hijacked mailbox from sending thousands of spam messages before it is noticed.
• They encourage measured sending, which mailbox providers view as more trustworthy than sudden bursts.

If you send within normal business volumes, you will not notice the limits. But if you need to send campaigns:

• Hitting the limit means further mail is queued or deferred - not lost, but delayed.
• Repeatedly slamming into the limit is itself a signal you should be using a proper bulk-mail channel.

The right approach for volume: route newsletters and marketing through a dedicated platform or an SMTP relay such as SendGrid. This keeps your transactional mail flowing, spreads volume appropriately, and gives you deliverability analytics - all while protecting your domain and our shared IPs.

If a legitimate application (like a busy online shop) is bumping the limit with transactional mail, contact us - we can discuss a higher limit, a dedicated IP or an SMTP relay. Our team is available 24/7 on WhatsApp +971 58 553 6767.