Assuming I send 10,000 emails daily, does it make sense to switch to an external provider such as Sendgrid / Postmark / Amazon SES? Why?
Is it because my clients are more likely to receive emails (i.e. their servers have a better reputation, they know better how to handle SPF / DKIM, etc.)?
Is it because I do not need to worry about setting up / administering an SMTP server?
Is it due to bandwidth or server load?
Is this because it handles unsubscriptions / bounces / etc better?
Is this all? :)
I ask because I have a system that works. It is not 100% reliable (still some messages get lost on the way), and I am sure that it could be improved in other ways, but I want to know what benefits I could expect from switching to an external provider.
PS: I'm definitely not a spammer. I am sending the information that people requested. :)
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