I ran an email forwarding service https://mailwip.com (former hanami.run) that also support SMTP and IMAP.
IMHO, gmail is the best company out there that can accept your emails. The most common issue with gmail is email land in spam but they learn quickly and very rare just outrage reject IP. as in, gmail won't relying solely on reputation of IP but based o sender domain or so.
Compare with hotmail or icloud or some random email hosting service, they will reject your IP just outright.
I would say it's definetely tough and stressful to run an email services for everyone, but if you run it for yourself only(so you know you're good and won't send out random spam), I will say it ins't that bad.
IMHO, gmail is the best company out there that can accept your emails. The most common issue with gmail is email land in spam but they learn quickly and very rare just outrage reject IP. as in, gmail won't relying solely on reputation of IP but based o sender domain or so.
Compare with hotmail or icloud or some random email hosting service, they will reject your IP just outright.
I would say it's definetely tough and stressful to run an email services for everyone, but if you run it for yourself only(so you know you're good and won't send out random spam), I will say it ins't that bad.