cannot find your hostname

Z

zero

Perch
I have a client who is having email troubles. People trying to send email to her are consistently receiving the following error: Client host rejected: cannot find your hostname

Thanks to the support department here for thoroughly explaining the problem and sticking with me through this time. Due to their explanation, I understand that there is a problem on the rDNS servers on the sender's end and that this is not directly a problem on the jodohost mail servers. Although, this is directly a problem for my client who has been receiving email from these senders just find until recently.

After about six replies on the trouble ticket, I was finally able to get this from support, "We have recently enabled this check to combat serious spam botnet attacks that have caused problems on most of the mailservers." Since they have started checking for rDNS, my client has been experiencing this issue.

I understand the high ground that is being taken here and the noble effort they are undertaking to reduce spam, but this is vastly affecting the quality of service I'm providing for my clients. If given the choice of losing email from their clients or receiving more spam, I have no doubt that they will chose more spam.

Can anything be done about this? It has become a huge issue with one particular client of mine, which I value very much.


.brit
 
zero, I can assure you, almost every major mail server on the internet does rDNS checks for incoming mail. If your client cannot send email to us, he or she probably can't send email to alot of places.

rDNS checks prevent someone from setting up a mail server on their home PC, and bombarding mail servers with tons of spam. As long as your client is using a mail server on a permanent IP address, there is no reason it shouldn't have a rDNS record (contact the administrator of the mail server, if not). If the server is on a dynamic IP, really, I'd ask your client to look for a more reliable email solution.
 
I completely understand the reasoning behind this and agree 100%, but that doesn't help my client (directly) or me with this issue.

If I stand my ground on this with this particular client, they will walk. No doubt.

What are the options for resolution of my client not receiving these emails, other than me contacting every ISP that has a bad rDNS, which obviously is not an option and probably wouldn't solve the problem anyway since they probably wouldn't fix it.


.brit
 
Yash said:
zero, I can assure you, almost every major mail server on the internet does rDNS checks for incoming mail. If your client cannot send email to us, he or she probably can't send email to alot of places.

rDNS checks prevent someone from setting up a mail server on their home PC, and bombarding mail servers with tons of spam. As long as your client is using a mail server on a permanent IP address, there is no reason it shouldn't have a rDNS record (contact the administrator of the mail server, if not). If the server is on a dynamic IP, really, I'd ask your client to look for a more reliable email solution.
Click to expand...
Yash, my client is on a JodoHost mail server. I'm a reseller. The problem is she is not receiving email from at least four different senders (outside domains). They are all receiving "host not found" errors, suddenly.


.brit
 
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