i discovered that the reason i, and, significantly, my clients, including the fremont players, were getting our emails “randomly” blocked by places like @gmail.com, @hotmail.com, @msn.com and so forth, was because my host provider’s data center was a known spam haven. my impression is that everybody knows to avoid Limestone Networks — the one admin i was able to convince to talk to me, said the following:
To give you an idea of the problem Limestone is we escalated the /18 your IP is in more than 6 years ago (March, 2011 to be exact), and despite rejecting several thousand emails a day since then in all that time I am aware of exactly one legitimate sender this has affected: You.
Limestone is not the worst spam haven on the Internet, but it’s not for lack of trying.
so they do business, or, more likely, have someone else do business for them, as IonBlade. i was desperate when they stepped in and assured me that they could fix everything — it turns out that my problem was my VPN provider all along, but i didn’t know that at the time — and i was already 6 months in before anything started to seem wrong.
so, i started looking for a new host provider in january, did my homework this time, and settled on WebHostPython, which actually offers me about 5 times what anyone else has offered, for a little bit less money… a definite step in the right direction.
however, i still had to notify the VPN provider of the change in my IP address, and while they dragged their feet getting it straightened out, i went for a couple of weeks not being able to send SMTP mail. of course i could use IMAP, but i don’t like keeping potentially incriminating evidence on someone else’s computer, and, these days, you just never know what they’ll decide is incriminating evidence… my SMTP started working yesterday, which brings to a close the battle of (someone else’s) computer, once again.
webhostpython has already helped me clear up a lot of IP and DNS cruft left over from 10 years of switching web hosts and not knowing what to clean up. i’m hoping that they’re still going to be my host provider 10 years from now, because, honestly, i’m FED UP with switching host providers. 😐