How do I set the PTR for a Floating IP?

  • Posted October 20, 2015
  • DNS

How do I set the PTR record for a Floating IP?


Just rediculous this is not supported - just had to stop using my floating IP because of this after confirming Gmail does not accept email from my floating IP, but does accept email from the droplet IP with PTR record configured. Floating IP is now useless.

+1 having PTR for floating IP

Using domain as droplet name the PTR is simply created and sending e-mails with postfix null client is easy. But with the - very cool - floating IP this PTR-creation is broken.

However, since I have to send e-mails, my workaround is to use a 3rd party relay (in my case gandi) with user/password authentication at the relay. Found the steps in (there for gmail). Just in case, the next reader have to sent emails too and is looking for a work-around.

Hey, I know you guys are already very busy working your asses off to provide us this awesome service and I’m very thankful for that, but if it helps to somewhat prioritize your tasks a little bit more, then I would like to add my concerns to this issue as well :).

+1 please userdefined PTR records or at least the option to set them to our floating IP

+1 I now have this issue too

+1 it would be nice to have this feature implemented

+1 useless

This is a serious issue. Without reverse IP its not possible to send email without using a third party relay. Even if the droplet is not used a mailserver, being able to send emails is often critical even if its just to get notifications from cron tasks.

See the post here which gives an example of why PTR records are required:

As others have pointed out, without PTR records floating IP’s in many cases are essentially useless.

+1, No PTR record for a Floating IP, this makes the Floating IP useless.

Adding my voice to this - PTR records on floating IP addresses are important

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I cannot use this service for our legitimate email servers without floating IP + reverse DNS. It seems that, in order to block spammers, you are also blocking legitimate businesses. The right thing to do would be to find another way to block spammers.

I have been fighting spammers for 15 years. Cloud computing was a godsend for them. The latest tactic is to spin up a few servers, send out a bunch of spam on fresh IPs, then make them disappear. I’ve been fighting one spammer for 10 months who has used over 300 ranges of IPs and counting. This tactic you have of not allowing reverse DNS for floating IPs is not stopping a spammer that uses IPs for one day. It is stopping legitimate businesses that want to establish a long term reputation of credibility on a certain IP, something that spammers do not want to do. You are hurting and not helping.

Come on, this can’t be hard. Reverse lookup of a floating IP is important.

+10000 We really need this feature enabled, it’s really important for our business!!! Please do it asap or you guys will lose lots of genuine clients!

Please give us the option for setting PTR on floating IPs.

+1000 This really needs to be done. It makes floating IP’s completely useless for mail servers. Frustrating!

It is important to activate this service. Possibility to add a hostname in any floating ip

Hey friends!

Just wanted to weigh in on this a bit. Currently adding and removing a floating IP from your account is difficult for us to track. This means that allowing SMTP would benefit spammers greatly, further hurting the function for legitimate customers. That isn’t your problem of course, but it is meant to show the depth of work that must be done around this before we could consider unblocking SMTP, which is the function that drives the need for a PTR record. Dealing with the use of our network by spammers continues to be a daily fight.

Please know that we do read your feedback and we do use it to inform our discussions around changes to the platform. While we make no promises, your feedback does serve a function and it is to advocate for the change that you request.

Always keep the feedback coming, we are continually thankful for it <3



Just keeping this thread going in the hopes it it get picked up


I really don’t like obscenities in public conversations, but vagkaefer has a point.