[bonzog]

I've been running MIAB for a few years now with generally good success as an outgoing sender using a rented cloud machine and a "clean" reputation IP. I've had to email the Microsoft postmaster on one occasion when my emails weren't reaching Outlook users, but they were surprisingly helpful and it's been working fine for years now. It's a good learning exercise in setting up stuff like DKIM/SPF/DMARC.

That said - receiving account sign-up emails is the absolute biggest pain in the backside with Mailinabox! The greylisting anti-spam feature relies on bouncing unknown senders and waiting for a retry. The trouble is, many legit sites just don't bother retrying. So email verification for new accounts and 2FA-type stuff often takes ages to come through, if at all. MIAB stubbornly has no easy, mail user-facing way to temporarily disable spam filtering and it's a real PITA at times.

[abdullahkhalids]

Oh! That's what it is. I just thought some websites just took longer to send an email to my unknown domain.

I see that the only way to disable greylisting is to configure the underlying tool [1]. But it also means that SPAM will increase a lot.

[1] https://discourse.mailinabox.email/t/how-to-turn-off-edit-gr...

[behringer]

It's better to whitelist the domains you'll be getting mfa from.