Sending an email to the mailbox is like posting a letter to a mailing address, and choosing an SMTP (simple mail transfer protocol) is similar to choosing a courier service to deliver you mail. If you are curious about your mail to be delivered on time and to the correct recipient, then you need to be selective in choosing your SMTP to deliver you email to the inbox. You see several postal mails at home, few of them were thrown over the main gate and a few placed inside the mailbox of your home. The ones that were thrown on the floor or over the gate make you conceptually weak about the importance of the content inside. You always give more importance or you only give importance to the mails that are delivered through proper channel and placed correctly. Same is the case with emailing that you mostly don’t bother about the spam/junk folder (depending upon how much time you have to go through all junk). A qualitative courier always places you mail at the right location to approach your desk and provides the reporting of the acceptance.

So now let’s talk about the electronic world where a mail becomes an email and the world becomes an e-world. You see various Email Service Providers (ESP) across the e-world offering different packages and features. Remember one thing, not every ESP is an SMTP provider. Most of the ESP(s) don’t provide remote access to sending infrastructure via SMTP so here we’ll talk about SMTP providers e.g. Sendgrid, Amazon SES, theSMTP etc. Over the internet, there are almost countless companies providing SMTP services but remember one thing, not every provider is capable to reach every mailbox. When you have something important to be posted, you always prefer a better courier service that you can trust on. So selecting a better and reputed ESP is what you should plan. In my blog, I’ll give a brief comparison on different SMTP providers too along with my suggestions.

Mumara is giving you an opportunity to connect multiple SMTPs of your choice and associate appropriate sender-IDs to them. Sender-info (e.g. from-name, from-email, reply-to, return-path) as listed in SMTP can be useful when sending a campaign using multiple SMTPs in rotation. It’s a common practice by bulk mailers where they need to use multiple SMTPs to send bigger campaigns using multiple sending domains to hit maximum inboxes. We have added another very useful feature for SMTPs that is spintags. You can now create spintags of unlimited variations and embed into sender-info. E.g. for the field “From Name”, if you create spintags {{first_name}} and {{last_name}} with 100 values each so it will become 10,000 variations in total that will convert your “From Name” to a maximum of 10,000 combinations for first and last names in random. It’s a great tool to avoid the email being marked as suspicious by the mail agents.

Integration with major SMTP providers like theSMTP, Sendgrid, Amazon SES +20~ more are already undergoing and should be launched very soon. Integration with SMTP providers will include transmitting messages in encrypted state and real-time reporting with Mumara. For advanced mailers, we have provided an option to include custom headers that may be used for various purposes e.g Tracking etc. In Mumara, you can assign a sending domain to any SMTP that will act as the tracking domain and replace the hyperlinks and image URLs with itself for better deliverability and white labeling.

Below you’ll find out the suggested SMTP providers for better deliverability.

1. Amazon SES

My Review: By having long-term relationship with Amazon SES, I am highly recommending their SMTP based on the deliverability and highest inboxing. However, Amazon is not looking forward for high bounce percentage and blacklisted domains to send-from.

Pricing: $0.10 per 1000 emails + $0.12 per GB of the data transfer


2. Sendgrid

My review: I have been testing/using sendgrid for several years and yes I can definitely recommend them based on their useful features like click tracking, detailed logs etc and their deliverability. Moreover, they are return-path certified that makes deliverability significantly higher.

Pricing: $9.95 per month for 40,000 emails, $19.95 per month: up to 100,000 emails, $57.45 per month: up to 150,000 emails.


3. Mandrill

My Review: Mandrill is powered by Mailchimp and its necessary to have a Mailchimp account to connect to Mandrill App. Mandrill showed very high inboxing rate and of course extremely recommended. Make sure that the sending speed is slower than Amazon SES and Sendgrid.

Pricing: Mandrill provides their pricing in blocks. Each block consists of 25,000 emails and it costs $20. The rate/block drops when you go higher. i.e for blocks between 21-40, it costs $18/block, 41-80 costs $16/block, 81-120 costs $14/block, 121-160 costs $12/block, 161+ blocks would cost you $10/block.


4. theSMTP

My Review: theSMTP is owned by Mumara and I have been using it since its existence. theSMTP isn’t saturating itself by adding clients who send unsolicited emails. They only welcome legit senders and assure 100% inboxing and extremely high deliverability. It comes up with Mumara interface where clients can manage their contact lists and schedule their campaigns. Mumara has everything for you to take your marketing automation to the next level.

Pricing: $9.99 per month for 10,000 emails, $69.99 per month for 100,000 emails, $299.99 per month for 500,000 emails


$15 per month for up to 500 subscribers, $25 per month for 501-2500 subscribers, $45 per month for 2501-5000 subscribers. Custom pricing for 5000+ subscribers

  1. Mumara
  2. Working with SMTPs

Working with SMTPs

Sending an email to the mailbox is like posting a letter to a mailing address, and choosing an SMTP (simple mail transfer protocol) is similar to choosing a courier service to deliver you mail. If you are curious about your mail to be delivered on time and to the correct recipient, then you