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All Tags » 550
  • Re: Zen filtering email?

    I had the same problem a few months back with my forwarding spam messages and all bouncing back nearly all with the same 550 message. Got in touch with Zen support who did reply but kept saying it wasnt their servers,,,,,,well there was nothing else it could be. I even turned off my Kaspersky spam control to show it wasnt my pc or software. In the ...
    Posted to Email (Forum) by Dollybird on February 3, 2010
  • Re: Blacklisted IP address

    I find it amazing that Zen, who are constantly voted ''Very bloody good'' by every ISP rating system in the country, don't have enough pull at Tiscali to just say ''look, jerks, we're Zen, get our mail server off your ridiculous blacklist''. It's a shame you can't threaten them somehow. Like, blocking all Tiscali IPs from your network and saying ...
    Posted to Email (Forum) by delcara on October 22, 2008
  • Re: Blacklisted IP address

    I'm getting the exact same issue. Would it be possible for Zen to route Tiscali emails through another server, or better, talk to Tiscali and tell them to sort out their receiving mail servers? My experience tells me that non-Tiscali customers are going to have an impossible task trying to explain the issue to various levels of helpdesk support...
    Posted to Email (Forum) by delcara on October 20, 2008
  • Envelope Sender: Domain must resolve in DNS!

    We've got an exchange server, hosted on a Zen connection, and randomly, users get the above error when sending emails. I've inserted 555 in the email addresses to (hopefully) prevent spamming  Generating server: diamond.cor.local Support@rhombus-systems.com555smarthost03.mail.zen.net.uk #550 Envelope Sender: Domain must resolve in DNS! ...
    Posted to Email (Forum) by delcara on July 17, 2008
  • 550 error "Unable to verify sender"

    Hi, I've recently switched hosting company and today for the first time have had trouble sending out an email via the Zen smtp server. I'm sending emails from my own domain, which is hosted by a third party. The DNS records look to be in order but I get the following error (only when I send to one particular address - so far) - I've *ed out the ...
    Posted to Email (Forum) by meesteryan on April 30, 2008