Generally speaking, yes.
Here's s great 1 minute script to install #Postfix, #Dovecot, #OpenDKM, #SpamAssassin, etc., Complete with copypasta keys, Etc., And use the MXToolbox .com tools to check your MX RRs, #SPF, #rDNS, and you should be fine sending even to that shithole gmail:
https://github.com/LukeSmithxyz/emailwiz
It's a pretty awesome install. Waaay better than all that bloated moocow stuff.
I hope that helps!
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#postfix #dovecot #opendkm #spamassassin #spf #rdns #tallship #foss