Not receiving confirmation email

For some reason some email servers reject email from us.

I don't know why. So if anyone could shed some light on this I'd be very happy.
193.33.61.57 resolves to wechall.net so I don't know what they're complaining about

These are the servers and their responses:

host mx.freenet.de [195.4.92.211]: 550 inconsistent or no DNS PTR record for 193.33.61.57 (see RFC 1912 2.1)
host operamail-com.mr.outblaze.com [64.62.181.92]: 450 Client host rejected: cannot find your hostname, [193.33.61.57]
host mail.tor.hu [195.228.74.5]: 450 4.7.1 Client host rejected: cannot find your hostname, [193.33.61.57]
host mx.bol.com.br [200.221.29.128]: 450 Client host rejected: cannot find your hostname, [193.33.61.57]
host mx0.tor.hu [195.228.74.5]: 450 4.7.1 Client host rejected: cannot find your hostname, [193.33.61.57]
host mail.pozitifff.com [94.103.92.74]: 550 5.7.1 ... Relaying denied. IP name possibly forged [193.33.61.57]
host mail.mailde.de [88.198.2.106]: 450 4.7.1 Client host rejected: cannot find your hostname, [193.33.61.57]
host mail.contaktn.com [66.199.237.82]: 450 4.7.1 Client host rejected: cannot find your hostname, [193.33.61.57]
host mx-1.tele2.ee [212.107.52.23]: 450 4.7.1 Client host rejected: cannot find your hostname, [193.33.61.57]

Quote from Kender

193.33.61.57 resolves to wechall.net so I don't know what they're complaining about

Maybe because your mail server is not 193.33.61.57 ?

$ host wechall.net
wechall.net has address 193.33.61.59
wechall.net mail is handled by 10 mail.wechall.net.
$ host mail.wechall.net
mail.wechall.net has address 193.33.61.59

Yes, the mail server is 193.33.61.57.
That is why they mention that IP in their rejection response.

The website runs on IP 193.33.61.59

Yes, but your MX record is mail.wechall.net (193.33.61.59, reversed in wechall.net).
I'm not an expert but it may be a zombie detection method.

Hmm. yeah, I overlooked the mail.wechall.net entry.
I've changed that to 193.33.61.57.

That did not solve the issue though

Is confirmation broken?

No mail errors in my inbox, except foo.com points to itself.
So mails should arrive fine unless you are foo.com

In case there is some & in the links change them to &
Some mail clients interpret them wrong

It's a bug then: change e-mail -> save changes -> message about confirmation e-mail being sent. However, e-mail never arrives.

The mail is sent to your old email address first.
Also make sure you check your spam folders.

Hope this helps
gizmore

OK, I got it now. The reason I wanted to change e-mail was because I've had lost access to it and was getting really nervous. But now it's OK

Thanks!