Zimbra Forums

Zimbra Global Settings: Enable authentication: yes TLS authentication only: yes On PDA (T-Mobile MDA Vario) for SMTP: SSL required: yes Authentication required: yes Independent settings: no (uses POP3). Today's experience: 1st try - connected PDA using GPRS, send message successfully. From var/log/z...

Me too! We use Zimbra regularly (yet 4.0.3) and remote POP3 and IMAP works flawless incl. sending mails from remote clients to outside world using SMTP authentication. Now we are deploying PDAs/phones with Windows Mobile 5 and SMTP does not work as expected. When sending to Zimbra local users, it wo...

Well, it depends. We have the site-to-site VPN in place. Zimbra is on one side, server to relay (Exchange) is on the other side of VPN. Then Exchange server has 2 different IPs - public external and internal. We use MS Active Directory on both sides, including DNS forwarders that take care of reques...

Update - resolved. I found out that I need to use IP address instead of FQDN in the following command: zmprov md example.com zimbraMailTransport smtp:123.456.789.012 With above, Zimbra then relays using IP address. In other case, Zimbra tries to resolve IP probably using DNS even when DNS lookups ar...

Thanks Klug! Now I found that I had a different config in Server settings and Global settings. Server settings are correct from my point of view (no DNS lookups, relay MTA as IP address. In the Global settings there is no relay MTA specified and DNS lookups are enabled. zmprov gcf zimbraMtaDnsLookup...

Correction - in fact the split tunneling probably exists as the client in remote location has at the same time access to both internet (using local default gateway) and the remote site (using site-to-site VPN). Remote networks are routed, no NAT between them. To Klug - I just typed the IP address us...

I do not think that split tunneling is in place. I do not know what you mean with client machine. I have added host entry of Exchange public address in Zimbra. I did not mention that both sites have independent internet access, but it is obvious I think. Just do not know why Zimbra does not use expl...

I have experienced a behaviour that is strange for me and I would be very happy if someone can explain it to me. We use Zimbra and MS Exchange in split domain scenario where Exchange is the smart host. Zimbra and Exchange are in different geographics locations. Zimbra uses MS Exchange as the Relay M...

Thanks Phoenix. But I did not ask for domain/user whitelisting, sender address is very often forged. I have seen numerous examples of spam coming to us from our own domain (forged) and such an approach would be contraproductive. For the start, I would be happy if I could disable spam checking when m...

I know that I had asked this on forums before, but since I got no reply that would help me I am asking again after some time. Is there a way to disable spam filtering for all messages that come from my internal networks and/or from authenticated SMTP users? Time from time a couple of outgoing messag...