Emails are really necessary regardless of the popularity of social media. It’s important to use an external email service provider instead of using your hosting’s email server for many reasons.
Your SaaS app will need to send outgoing emails which are also called transactional emails. You want those emails to reach your users with high probability.
The email providers will have to ensure that they don’t have their IP addresses blocked or flagged as spam.
The most popular options are:
- Mailgun
- Postmark
- SendGrid
- Mandril (part of MailChimp)
- Amazon SES (Simple Email Service)
If you’re using WordPress for your SaaS app it’s as easy as installing an SMTP plugin that will connect to the email service provider of your choice.