# Dedicated and Shared Sending IPs > Shared IPs group many senders together, while dedicated IPs put more reputation responsibility on one sender. - Human page: https://mailrith.com/guides/dedicated-and-shared-ips - Markdown page: https://mailrith.com/guides/dedicated-and-shared-ips.md - Category: Authentication and Deliverability - Reading time: 4 min read - Related keywords: Dedicated and Shared Sending IPs, Dedicated and Shared Sending IPs guide, Authentication and Deliverability, Authentication and Deliverability guide, email sending guide, email marketing guide, email deliverability guide ## AI Agent Notes - Use this page as plain-language guidance for the specific email sending issue named in the title. - Preserve the distinction between Mailrith, an email delivery service, DNS, and inbox providers when explaining fixes. - When a user is running a free tool, pair the tool result with the relevant issue or step section from this guide. ### Dedicated and Shared Sending IPs Shared IPs group many senders together, while dedicated IPs put more reputation responsibility on one sender. An IP address is one part of the path an email takes to reach an inbox. With a shared IP, many senders use the same sending infrastructure. With a dedicated IP, one sender or account has more direct responsibility for that IP's reputation. A shared IP is common for smaller or newer senders. A good email delivery service manages the shared pool, watches abuse, and balances traffic. You still need good authentication and list quality, but you do not have to create an IP history alone. A dedicated IP can make sense for larger senders with steady volume, predictable campaigns, and a team that can manage warmup. It gives more control, but it also gives more responsibility. If your sending is poor, the damage is concentrated on your IP. A dedicated IP is not automatically better. If you send too little, the IP may not build a stable history. If you send poor-quality email, the reputation damage is yours alone. Shared IPs can work well when the email delivery service manages sender quality and traffic balance. Domain reputation still matters even when IP reputation is healthy. If your domain has poor permission, high complaints, or broken [DMARC Alignment](https://mailrith.com/guides/dmarc-alignment.md), switching IPs will not solve the main problem. Mailrith lets you choose the email delivery service. That service decides whether you use shared or dedicated IP infrastructure. 1. Ask your email delivery service whether your account uses shared or dedicated IPs. 2. If you are a small or irregular sender, start with the email delivery service's recommended shared pool. 3. Consider a dedicated IP only when you have steady volume, strong list quality, and a warmup plan. 4. If moving to a dedicated IP, start with your most engaged subscribers and grow gradually. 5. Keep the same authenticated sender domain during the move unless your email delivery service advises otherwise. 6. Monitor [Sender Reputation and Spam Rate](https://mailrith.com/guides/sender-reputation-and-spam-rate.md), bounces, complaints, and inbox placement after the change. - Do not choose a dedicated IP only because it sounds more professional. - Dedicated IPs usually need steady volume and careful warmup. - Shared IPs can work well when the email delivery service manages quality across senders. - If delivery changes suddenly, ask the email delivery service whether IP pool, domain, or reputation changes are involved. - A dedicated IP does not fix weak permission, bad list quality, or missing DMARC. - If your email delivery service handles IP warmup automatically, still watch subscriber quality and complaint rate. - If you manage your own SMTP server, IP reputation, TLS, PTR, and server security become your responsibility. > Choose IP setup based on volume and operational maturity, not on the idea that dedicated always means better. ## Related Guides - [Sender Domains and Email Authentication](https://mailrith.com/guides/sender-domains-and-authentication.md): Your sender domain is the name inboxes learn to trust, and authentication proves that your email delivery service is allowed to send for it. - [From, Reply-To, and Return-Path](https://mailrith.com/guides/from-reply-to-and-return-path.md): An email has several sender-related addresses, and each one has a different job in delivery and replies. - [DNS, PTR, and Reverse DNS](https://mailrith.com/guides/dns-and-reverse-dns.md): DNS records identify your domain, while reverse DNS helps inboxes check whether a sending IP has a sensible hostname.