Gmail is free. How much customer support resources should someone reasonably expect a company to dedicate towards their free-of-charge services?
This is starting to become important as countries (very unwisely!) start tying things like national ID and banking to smartphones.
But when a moderately technical colleague wanted to do the same, I told her to use Mox, she set it up and Gmail doesn't block her either.
So... would you please elaborate?
It was dead-nuts simple in the 1990s: Just learn enough about DNS to put in an MX record that points to an A record, get sendmail working, and have it begin delivering mail. The end. (Open relay? No spam filter? No virus scanning? No nothin'? Yeah, that kind of was the style at the time...)
It's got a lot more steps today, but it's still do-able. Operationally, keeping a mail server online and treated well just takes one or two people to spend a little bit of time occasionally to stay proactively ahead of new expectations and requirements instead of reacting to them after things change.
It also helps if Carla, from marketing, doesn't wake up one day and decide to spam the entire customer list without asking for guidance first. Maybe I should have put some automatic mitigation into place for that, but whatever: We chatted about that and it never happened again.
(Or at least, I find that to be true with smaller companies. Bigger ones obviously may require more elaborate systems to handle more volume and/or provide better uptime. But the requirements of keeping the reputation up are about the same regardless of scale, and that still only takes one or two people to pay attention to things sometimes. [And the only reason two might be required is in case one of them gets hit by a bus.])
I am definitely not being flagged for any actual spam-like behavior. I might send out 40 e-mails a year, and even though it's a "family" domain, I'm the only one who has ever used it, ironically enough, as part of my decade-old effort to de-Google.
I also have my own MTA. No problems with anyone ..... except Microsoft, who (silently) never delivers the mail.
Fixing it was always pretty simple -- or at least, non-mysterious. They'd bounce some things, I'd look at the headers of the bounced messages, and therein were links to instructions there that showed how to resolve whatever issue it was this year.
Just follow the steps, implement the new thing, and stuff started flowing again in rather short order. Not so bad.
IIRC, the only time it ever cost us any money was when the RBLs started keeping track of dynamic IP pools and we needed to finally shift over to something actually-static.
AWS, on the other hand has proven willing to move mountains for me as a $15/mo customer.
Maybe it's only legacy, but gmail brings customers to Google and their related services. Escalation then brings them on as paying Customers. As loss leader may make a loss if looked at in a bubble, but if looked at as part of the "Customer Lifecycle" then other areas of profit would likely be much smaller without the free gateway.
It takes me active resistance to avoid Google's paid services, and I'm staunchly independent in relatively rare air. The minor capitulation required to turn into a paying Customer would capture a good percentage of their erstwhile-free gmail users (I would think. Yes, conjecture, interested in explanations of alternative theories).
Zero. OTOH, since I'm sure they are training on emails and archiving/profiling everything forever even if we delete messages.. those constant threats to become a paying customer before hitting some arbitrary small quota are still villainous
Source: Used to work there.