On 2025-05-07 18:48, DigitalOcean Support wrote:<br>> We’d be happy to explore the possibility by having our Security team<br>> take a closer look at unblocking the SMTP ports for you. To help us<br>> better understand your needs and move forward with your request, could<br>> you please share the following details about your business<br>> requirements:<br>> <br>>  	* What type of emails will you be sending (e.g. transactional,<br>> newsletters, etc.)?<br>>  	* Are you planning on hosting your own email or utilizing a<br>> third-party sending service?<br>>  	* If possible, please provide context on your port requirements and<br>> if nonstandard ports or an API cannot be used.<br>> <br>> Once we hear back from you, we will forward your request to the team<br>> with all the details provided.<br>> <br>> ----<br>> <br>> DigitalOcean Support Team<br>> <br>> ref:!00Df2018t5m.!500QP0ihkkg:ref<br>> <br>>  Copyright (c) 2022 DigitalOcean<br>> Floor 10, 101 Avenue of the Americas, New York, NY, 10013<br>> All rights reserved.<br>Thank you for your response and for offering to escalate our request to <br>your Security team. Please find the requested information below <br>regarding our SMTP port requirements:<br>1. Type of Emails We Will Be Sending:<br>We will be sending both transactional and marketing emails. <br>Transactional emails include order confirmations, password resets, <br>account alerts, and similar communications triggered by user or system <br>actions.<br>We also send marketing emails, such as newsletters and promotional <br>content, to users who have opted in. These emails are managed through <br>our ERP system and sent in compliance with applicable email marketing <br>regulations (e.g., CAN-SPAM, GDPR).<br>2. Email Infrastructure and Sending Method:<br>We are not self-hosting our mail server directly on DigitalOcean. <br>Instead, we use an external cPanel-based mail server to send all emails. <br>This setup is already configured with proper authentication mechanisms <br>(SPF, DKIM, and DMARC) and integrates with our ERP system to automate <br>both transactional and marketing communications.<br>3. Port Requirements and Alternatives:<br>We require access to SMTP ports 25, SSL - 465, and TLS - 587 to allow <br>our applications hosted on DigitalOcean to relay messages through our <br>external mail server securely. These ports are needed to support <br>standard SMTP delivery protocols and ensure compatibility with the mail <br>server's encryption and authentication methods (STARTTLS/SMTPS).<br>While we understand that third-party APIs or nonstandard ports are <br>alternatives, they do not fit our setup due to the ERP integration and <br>the specific mail server configuration we're working with.<br>Please let me know if you need any more details. We appreciate your help <br>in reviewing this request with your Security team and help sort this <br>matter as soon as possible as currenly we are stuck and also our clients <br>are quite frustrated.