
A common query we hear a lot in the mobile marketing sector is: “What’s the optimum way to send SMS messages?”
Well, for seasoned veterans of the industry, the pluses and minuses of SMPP and SMTP are well-known. But, if you’re new to the tech, it might be perplexing.
Let’s keep it simple: SMPP and SMTP are the only two paths for delivering an SMS message.
SMTP (Simple Mail Transfer Protocol) SMS servers allow users to shoot text messages via email. But it was far from perfect. Sending messages could have been faster and more reliable. Moreover, SMTP SMS gateways weren’t built to tackle big volumes of messages, so businesses had to keep looking.
SMPP (Short Message Peer-to-Peer) servers offered a much more dependable and proficient solution to SMTP’s shortcomings. Sending messages with SMPP is instantaneous, and the servers can handle an incredible amount of traffic.
SMTPs are still a thing. But how do you know when to hit send with one? No worries. This guide will walk you through the ABCs of email-to-SMTP servers, so you can decide if it’s a good fit for your business or if SMPP might be more suitable.
An SMTP Service allows you to send and receive SMS texts from any email-transmitting program. It works like this: your application dispatches an email to the SMS system with the recipient’s phone number and the message itself. After the system confirms your email details, the text and number are swiped, and an SMS is sent off to the receiver.
Typically, the SMTP setup process looks like this:
Take note: SMTP servers are only sometimes suitable for some texting needs. Let’s look at a few use cases to comprehend when and how to apply them.
When is the Ideal Time to Send SMS Messages by Email?
If you need multiple people to send SMS messages but don’t want to keep providing them with your BulkSMS account details, you can simplify the process by using Email to SMS. This way, each person can easily send their SMS messages as emails.
Email to SMS can be helpful if you’re too busy or need more resources to integrate an API but want to send SMS for CRMs, external software, and plugins.
SMTPs are also suitable for those who need a text-based form of communication for their customers but would like to keep up with it through their current email system. Take a doctor’s office, for instance: they can use this to send SMS confirmations to their patients and keep an eye on any replies for filing with a patient’s records if need be.
Statista reports that 55% of the world’s website visits come from cellular devices – no tablets included. And that’s not all – emails usually follow the same trend .
It’s no surprise some companies still rely on SMTP servers for their messaging needs. The only downside? It’s much more complicated to do it this way. Despite potential applications, SMTP has glaring drawbacks restricting its use in SMS marketing.

Sending SMS via SMTP can be tricky – there’s no guarantee it’ll reach its destination immediately. Delivery delays depend on the carrier’s email-to-SMS gateway and any network snags that could crop up.
For some service providers or mobile devices, the odds of experiencing compatibility issues and, even worse, failed message deliveries are alarmingly high.
SMTP doesn’t come with any safeguards to stop people from viewing or changing your messages without permission
No automated process exists with SMTP to confirm a message has been sent to the receiving party’s device – a troubling prospect should you require confirmation that the message has landed in the intended hands.
SMTP only offers leeway when sprucing up your emails – like changing the sender’s name or the content of the text.
Some carriers’ email-to-sms portals might not let you use special characters and emojis, sadly curbing your ability to express yourself in messages.
Requiring an email infrastructure for SMS delivery through SMTP may be challenging for some situations and locations.
Some email services may mark SMTP-based text messages as unscrupulous mail, potentially causing them to go undelivered.
When using an SMTP-based SMS service, it is important to know that some providers may require additional fees.
For those considering ditching SMTP in favor of SMPP, the most compelling argument is to ensure a seamless customer experience – something that’s synonymous with trustworthy brands. After all, according to Salsify , 46% of shoppers only buy from brands they trust.

Using SMPP to send SMS has a myriad of advantages, particularly the fact that messages are sent lightning-quickly. With this tech, you can be sure you’re reaching customers or team members now.
SMPP is a prime choice for those needing to manage many SMS messages, making it a popular pick for huge messaging projects or applications.
SMPP gives you total control over SMS messages, like setting the sender ID, personalizing the text, and more.
SMPP offers bi-directional communication , providing you with the opportunity to stay in the loop and get messages as well as send them. It also supports binary messages, like pics and ringtones.
SMPP helps you stay on top of your game with its functionalities, like delivery confirmations, prioritized messages, and the ability to smoosh multiple texts into one .
SMPP ensures that your messages are kept safe and secure with encrypted and authenticated features . Plus, its wide usage makes integration with other systems a breeze.
SMPP cuts out the middleman so that you can send your messages directly to the SMSC, reducing latency way more than other techniques
SMPP is an economical option for sending out bulk SMS messages. It’s a great choice for those who need to send large messages.
SMPP demands a devoted link to the SMSC, potentially necessitating further setup and configuration than other SMS transmission methods. Before you zip off a text, ensure you’ve read over your carrier’s regulations and usage rules to ensure compliance .
Connecting to SMPP could be slightly different depending on what SMS gateway you use, but here’s an overview of how it goes down.
Operators, wholesalers, and businesses that require expedited SMS message delivery and switching between SMS peer entities can partner with BSG to reach these objectives.
Our SMS gateway offers a flexible data communication interface for the SMS transfer between External Short Messaging Entities (ESMEs), Routing Entities (REs), and SMSC.
With our SMS API, you can initiate transactional and
bulk SMS campaigns
, monitor the status of sent messages, and automatically retrieve their prices. You can also integrate user data from your CRM or CMS into your BSG account in order to automate segmentation and customize messaging flows.