bulk email solutions

Somewhat related to my mailing list trials, but larger in scale. I had a request to look at AWS Simple Email Service (SES) since the pricing is so much lower than Sendinblue et al. for their requirement of around 50k emails, but only once in 2 months or so. Since they would have difficulty with writing their own code, I mentioned Sendy to them, having come across it here. 

Another possibility was, making multiple users in their Google Workspace, and sending emails via those users. This would be easier for them to do, since it doesn't involve any coding. Unfortunately they don't put in unsubscribe links in their emails. This would probably be leading to low deliverability rates.

Putting their mailing list into a google group was another solution I had earlier suggested.

Sending mails through gmail smtp relay - 10k per user per day? - is another possibility, but more complicated -
https://www.gmass.co/blog/understanding-gmails-email-sending-limits/
https://support.google.com/a/answer/2956491

More detailed copy-paste from our email exchange about usage, pros and cons - 

SES requires you to create an application and then code the sending of emails into the application using their SDK or API

They have SDKs in a variety of languages,

Using Amazon SES with an AWS SDK - Amazon Simple Email Service

Sending through SMTP or API,

Set up email sending with Amazon SES - Amazon Simple Email Service

You will need to code your application to send using either SMTP or the API, like the example at

Sending emails programmatically through the Amazon SES SMTP interface - Amazon Simple Email Service

You cannot just use a program like Outlook or something like that, because you have limits like 1 email sent per second and so on, and it would be too painful to do that non-programmatically - 

Service quotas in Amazon SES - Amazon Simple Email Service

200 emails per 24 hours till you get upgraded on request,

1 email per second till you get upgraded on request,

and quota will increase automatically only if you send more email daily - 

Increasing your Amazon SES sending quotas - Amazon Simple Email Service

Also, please note that attachments cost extra - 

Amazon Simple Email Service Pricing | Cloud Email Service | Amazon Web Services

So, for example, if the happy new year email was sent with a 500 kB attachment to 50,000 people, 25 GB would have been sent, so 

50,000 * 0.10/1000 = $5

PLUS

25GB * 0.12 = $3 

Of course, still cheaper than Sendinblue etc.

I have tried out Sendinblue and Mailchimp APIs, example Google Apps script code is at

Google-Apps-Script-mailing-list/Test sendinblue API.gs at main · hn-88/Google-Apps-Script-mailing-list (github.com)

Google apps script intro - 

Work Stuff: Getting started with Google Apps Script (hnsws.blogspot.com)