By Hank Alper
I’m using postfix and cyrus which I set up as directed with mixed results. Yahoo and Gmail handle my emails well. Hotmail put it in the spam folder but doesn’t after being notified it’s not span. I tested by reading maillog after an attempt to send mail from DOserver to my roadrunner email account and observing maillog. Here is the maillog entry: Jan 2 06:10:55 Hanksite postfix/smtp[20314]: 49C48609ED: to=myname@cfl.rr.com, relay=cdptpa-pub-iedge-vip.email.rr.com[107.14.166.70]:25, delay=15, delays=0.02/0.01/15/0, dsn=4.5.4, status=deferred (host cdptpa-pub-iedge-vip.email.rr.com[107.14.166.70] refused to talk to me: 554 5.5.4 Relaying denied. IP name lookup failed for myIPaddress)
It looks like they can’t get through my smtp port. Why don’t the other major servers have the problems ? How can I fix this?
This textbox defaults to using Markdown to format your answer.
You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
I have never set up any mail servers before, but anyway:
Do you have a reverse DNS entry so it is possible to look up the domain name from the IP?
If you’re new to DigitalOcean, they may be blocking Port 25. That’s pretty common and it’s a measure in place to prevent spam since the entry level is cheap (which spammers love).
To get that lifted, you’ll need to contact them via support ticket.
Hi,
Problem solved with reverse DNS record. This is also known as a PTR record. Checked with support and P. Singh indicated that the PTR record is automatically set to the droplet name. You must therefore change the droplet name to your domain name.(i.e. mydomain.com) To change the name of the droplet : Go to the control panel and select droplet. Then click on your droplet’s name. Next select Settings from the horizontal display of choices.(Ignore the Settings choice in the main vertical menu) Then select Rename and type in the new name.
ralper3
Become a contributor for community
Get paid to write technical tutorials and select a tech-focused charity to receive a matching donation.
DigitalOcean Documentation
Full documentation for every DigitalOcean product.
Resources for startups and SMBs
The Wave has everything you need to know about building a business, from raising funding to marketing your product.
The developer cloud
Scale up as you grow — whether you're running one virtual machine or ten thousand.
Get started for free
Sign up and get $200 in credit for your first 60 days with DigitalOcean.*
*This promotional offer applies to new accounts only.