Effective August 3, 2026, we will begin a phased rollout of updates to improve security and performance.
Email size limits
To ensure reliable delivery, email attachments must be kept to 30 MB or less. While the system supports a maximum email size of 40 MB, attachments are encoded during sending, which increases their size
For larger payloads, please use the API, which supports file sizes up to 100 MB.
Encryption requirements
As part of our security improvements, we are moving toward requiring TLS 1.2 or higher encryption for all incoming emails. Most customers are already compliant and will not experience any changes.
If you are currently receiving email that does not use TLS 1.2 or higher encryption, Tungsten Support will contact you with guidance.
Please refer to the below kb article for further information:
Important Information: AP Essentials Email Service Security Upgrade
Scheduled
Effective August 3, 2026, we will begin a phased rollout of updates to improve security and performance.
Email size limits
To ensure reliable delivery, email attachments must be kept to 30 MB or less. While the system supports a maximum email size of 40 MB, attachments are encoded during sending, which increases their size
For larger payloads, please use the API, which supports file sizes up to 100 MB.
Encryption requirements
As part of our security improvements, we are moving toward requiring TLS 1.2 or higher encryption for all incoming emails. Most customers are already compliant and will not experience any changes.
If you are currently receiving email that does not use TLS 1.2 or higher encryption, Tungsten Support will contact you with guidance.
Please refer to the below kb article for further information:
Important Information: AP Essentials Email Service Security Upgrade