What do you use for outgoing smtp?

https://eviltoast.org/post/2431

What do you use for outgoing smtp? - eviltoast

One of the things I don’t really want to self host is a mail server, especially for outbound mail. Currently I’m using a Gmail account, but I want to change that. What do you all use for things like notifications sent through smtp? I’m leaning towards AWS SES since it’s cheap, but I know there are some other options like mailgun and sendgrid.

Another vote for smtp2go - free plan allows up to 1000 emails per day.
I use SMTP2Go for a verity of things. It's simple and pretty configurable. If you are using it, I recommend setting up a subdomain specifically for sending mail, that way you can isolate SPF/DKIM records from your primary domain.