4 ms·
I guess I was lucky because I haven't encountered a "dirty" IP yet, but I only tested 6 VPS providers so far. PTR records are updated from the VPS provider web
by h0r14 9y ago
I guess I was lucky because I haven't encountered a "dirty" IP yet, but I only tested 6 VPS providers so far.
PTR records are updated from the VPS provider web interface, it takes a few seconds to activate.
- Tepix 9y agoThe last time i rented a new server I checked the IP in the various blacklists. There was one blacklist that had listed the entire subnet the server was in. I asked them to whitelist my IP address in that subnet which they did. It took only a few minutes to write an email.
- dozzie 9y agoIt took quite a lot of knowledge what blacklists are out there and time to check them all. It's hardly "just a few minutes to write an e-mail".
- h0r14 9y agoI used http://multirbl.valli.org/ http://multirbl.valli.org/ but who knows how many are out there, not including private lists.
- reaperducer 9y agoIt's the private lists that will get you. What do you do if Google has your IP address on an internal blacklist? Or your health insurance company? Or some random Barracuda-style e-mail filtering appliance? Nothing. You're screwed.
- h0r14 9y agoIn that case, the IP is screwed. I plan change IP, or hop hosts if/when this happens. I opened 6 accounts on 6 different hosts, and only two are active for this reasons. So far so good :)
- gaadd33 9y agohttps://mxtoolbox.com/blacklists.aspx https://mxtoolbox.com/blacklists.aspx takes a few seconds? Then to follow up is a few more minutes
- kbenson 9y agoThere have been sites that check an IP against the vast majority of blacklists for well over a decade, and they've been free as well. https://encrypted.google.com/search?hl=en&q=how%20to%20check%20my%20ip%20for%20a%20mail%20blacklist https://encrypted.google.com/search?hl=en&q=how%20to%20check...
- haroldp 9y agoI run RBL checks a few times a day in Nagios, so I don't get surprised.
- decasteve 9y agoI had this sort of thing happen yesterday. Two IP addresses in my email server's /24 were flagged for spam so the whole range was blacklisted. I wasn't able to send email for about 8 hours until it was cleared for me. But this was 8 hours of outgoing email downtime in two years of running my own server.