--- title: "See Better Deliverability Rates With SMTP Relay Service | DuoCircle" description: "See Better Deliverability Rates With SMTP Relay ServiceHave you ever tried to use your email provider to send out messages in your email campaign? Then you" image: "https://www.duocircle.com/images/og-default.png" canonical: "https://www.duocircle.com/content/smtp-as-a-service/smtp-relay-service/" --- Content # See Better Deliverability Rates With SMTP Relay Service See Better Deliverability Rates With SMTP Relay ServiceHave you ever tried to use your email provider to send out messages in your email campaign? Then you [ Talk to an Expert → ](/contact/) [ See what we make ](/products/) ## See Better Deliverability Rates With SMTP Relay Service [Fix Your SPF Errors Now](/content/spf-permerror) _Have you ever tried to use your email provider to send out messages in your email campaign?_ Then you’ll know how frustrating it is to send them out, one by one. Also, since every email is the same, they may either bounce back or be marked as spam. [SMTP relay](/content/smtp-as-a-service/smtp-relay) service can help you combat deliverability problems. In this article, we’ll explain how an **SMTP relay service** works to make your email campaigns successes. ![smtp email hosting](https://media.mailhop.org/duocircle/images/2019/02/display-name-spoofing-protection.png) ### How does an SMTP relay service work? The acronym SMTP means “[Simple Message Transfer Protocol](https://whatis.techtarget.com/definition/SMTP-Simple-Mail-Transfer-Protocol),” which is the mode of transportation your emails take to go from you to your recipients. In that case, the [SMTP server](/content/smtp-as-a-service/smtp-server) would be the driver, since _it looks at the email details and delivers them accordingly._ **SMTP relay service** is when you utilize the services of an [SMTP service](/content/smtp-as-a-service/smtp-service) provider. Basically, they send emails for you on their SMTP server. _This has its advantages because you can send bulk and transactional emails from a server with an established reputation_, all without having to set up and pay for your own server. So how can SMTP relay service give you better deliverability rates? Here, we list some key ways it helps you reach your KPIs. MORE: [Email Pricing](/content/smtp-as-a-service/email-pricing) for providers. #### Maintain a good sending reputation Your [sending reputation](https://www.sparkpost.com/resources/email-explained/email-sender-reputation/) is what determines whether or not your emails make it to inboxes. _If you try to send one generic email to multiple recipients, your domain and IP address will quickly get blacklisted._ Once you’re blacklisted, you’ll have a poor sending reputation, meaning your emails will be seen as spam. Since **SMTP email providers** already have good reputations and high cap limits compared to your email provider, your reputation will stay safe when using them. MORE: Get [Free SMTP server](/content/smtp-as-a-service/free-smtp-server) ![hosted smtp](https://media.mailhop.org/duocircle/images/2019/02/phish-protection-bundled.png)![email hosting smtp](https://media.mailhop.org/duocircle/images/2019/02/Advanced-Threat-Defense-office-365.png) #### Keep spoofing at bay _When cybercriminals spoof your emails, that can wreck your sending reputation._ As a result, your **deliverability rate** can fall dramatically. Some managed [SMTP as a service](/content/smtp-as-a-service) offer both anti-spoofing and **anti-phishing protection**. With these two features, you can keep deliverability high. As a bonus, _you can also keep sensitive data of yours and your clients safe._ MORE: Things you should know about [SMTP Pricing](/content/smtp-as-a-service/smtp-pricing) ##### Join the thousands of organizations that use DuoCircle --- Find out how affordable it is for your organization today and be pleasantly surprised. [Outbound SMTP - Sign Up FREE](/email/outbound-smtp)Interested in our Partner Program for MSPs and VARs? Visit Our [MSP Partner Program](/msp-partner-program). ## Ready to talk? Same-day response from someone technical. We tell you yes or no quickly. If yes, we get to work. 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