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Need Help with my Mail Server

jwworker201
By jwworker201
in Servers, NAS, and Home Lab
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Posted

Hey guys,

 

I decided to host my own e-mail server so I decided to use Zimbra Collaboration Suite on Ubuntu Server 14.04.

I set up my MX record with  dnsmasq and it worked just fine.
But I cannot recieve e-mail from outside, but can send.. All ports are forwarded properly.

I tested my mx using mxtoolbox.com and I get a dmarc error. how to fix it? or have I configured my mx record false? 

 

I am new at the DNS stuff so sorry if I ask stupid questions..

 

Thanks for your time!

 

Do you think I should better use an easier solution like citadel?

 

 

Main Rig

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CPU - i7 6700 | RAM - 16GB (2x8GB) G.Skill, 16GB (2x8GB) Crucial OEM | GPU - MSI GTX 980 Gaming | PSU - Cooler Master G450M | Storage - 1x 256GB Samsung SM951 (NVMe)(System), 2x 500GB Samsung 860 EVO (Striped) | Case - Fractal Design Define R5 (with TG side Panel) | OS - Windows 10 Pro

NAS / Docker Host

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CPU - Xeon E3-1220v3 | RAM - 16GB (2x8GB) Kingston ECC | PSU - Enermax Revolution SFX 550W | Storage - 3x 4TB WD Red, 1x 2TB WD Red, 4x 3TB Seagate Constellation, 2x 250GB Samsung 850 EVO (Cache) | Case - AVID Unity Media Engine (3U Rackmount) | OS - UnRAID OS Pro

VM Host

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CPU - Xeon E3-1246v3 | RAM - 32GB (4x8GB) Samsung ECC | PSU - Enermax Revolution SFX 550W | Storage - 2x 512GB Samsung 860 Pro (System / "Fast" VM's), 4x 500GB HGST (RAID 10) | Case - Avid Unity MediArray XT (3U Rackmount) | OS - Windows Server 2019 Datacenter

Notebooks

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Fujitsu Lifebook E756 | CPU - i5 6200U | RAM - 8GB DDR4 OEM | GPU - Intel HD 520  | Storage - 250GB Crucial MX500 | OS - Windows 10 Pro

Apple MacBook Pro Mid 2015 | CPU - i7 4770HQ | RAM - 16GB | GPU - Intel Iris Pro | Storage - 512GB Toshiba XG4 NVMe | OS - macOS 10.15.1

 

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Posted

I've gotten this too a few times, but I don't remember at all what I did to fix it, its some missing config I think. Googling should turn up something helpful, that's what I did each time since I kept forgetting when I did the last setup.

 

Also check it with http://mxtoolbox.com/ That might help in narrowing down the problem.

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Posted

ISPs by default block port 25 now days to prevent wide spread deployment of open mail relays on home internet connections. Just give your ISP a ring and ask for it to be unblocked.

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Posted

Or use a dns service that allows translating ports to something that is not blocked by your ISP.

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Posted
  • Author

I don't think that this is my ISP... An test installation with citadel worked just fine. But Citadel has too limited functionality, has an ugly web interface and I had problems connecting it to Outlook/Thunderbird...
I think the nearest thing would be a misstake in my mx record but I have no Idea what it could be (as I mentioned before)

Main Rig

Spoiler

CPU - i7 6700 | RAM - 16GB (2x8GB) G.Skill, 16GB (2x8GB) Crucial OEM | GPU - MSI GTX 980 Gaming | PSU - Cooler Master G450M | Storage - 1x 256GB Samsung SM951 (NVMe)(System), 2x 500GB Samsung 860 EVO (Striped) | Case - Fractal Design Define R5 (with TG side Panel) | OS - Windows 10 Pro

NAS / Docker Host

Spoiler

CPU - Xeon E3-1220v3 | RAM - 16GB (2x8GB) Kingston ECC | PSU - Enermax Revolution SFX 550W | Storage - 3x 4TB WD Red, 1x 2TB WD Red, 4x 3TB Seagate Constellation, 2x 250GB Samsung 850 EVO (Cache) | Case - AVID Unity Media Engine (3U Rackmount) | OS - UnRAID OS Pro

VM Host

Spoiler

CPU - Xeon E3-1246v3 | RAM - 32GB (4x8GB) Samsung ECC | PSU - Enermax Revolution SFX 550W | Storage - 2x 512GB Samsung 860 Pro (System / "Fast" VM's), 4x 500GB HGST (RAID 10) | Case - Avid Unity MediArray XT (3U Rackmount) | OS - Windows Server 2019 Datacenter

Notebooks

Spoiler

Fujitsu Lifebook E756 | CPU - i5 6200U | RAM - 8GB DDR4 OEM | GPU - Intel HD 520  | Storage - 250GB Crucial MX500 | OS - Windows 10 Pro

Apple MacBook Pro Mid 2015 | CPU - i7 4770HQ | RAM - 16GB | GPU - Intel Iris Pro | Storage - 512GB Toshiba XG4 NVMe | OS - macOS 10.15.1

 

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Posted

Can you try this http://www.mail-tester.com

Should give you some error details like if you're missing PTR Records, SPF Records, FQDN issues, etc...

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Server: Fractal Design Define R6 | Ryzen 3950x | ASRock X570 Taichi | EVGA GTX1070 FTW | 64GB (4x16GB) Corsair Vengeance LPX 3000Mhz | Corsair RM850v2 PSU | Fractal S36 Triple AIO + 4 Additional Venturi 120mm Fans | 14 x 20TB Seagate Exos X22 20TB | 500GB Aorus Gen4 NVMe | 2 x 2TB Samsung 970 Evo Plus NVMe | LSI 9211-8i HBA

 

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  • 3 weeks later...
Posted
  • Author

Sorry for my really late reply!
 

But I have it working now. I switched my dns to cloudflare and switched from zimbra to citadel and all is working fine now!
But thanks to all!

Main Rig

Spoiler

CPU - i7 6700 | RAM - 16GB (2x8GB) G.Skill, 16GB (2x8GB) Crucial OEM | GPU - MSI GTX 980 Gaming | PSU - Cooler Master G450M | Storage - 1x 256GB Samsung SM951 (NVMe)(System), 2x 500GB Samsung 860 EVO (Striped) | Case - Fractal Design Define R5 (with TG side Panel) | OS - Windows 10 Pro

NAS / Docker Host

Spoiler

CPU - Xeon E3-1220v3 | RAM - 16GB (2x8GB) Kingston ECC | PSU - Enermax Revolution SFX 550W | Storage - 3x 4TB WD Red, 1x 2TB WD Red, 4x 3TB Seagate Constellation, 2x 250GB Samsung 850 EVO (Cache) | Case - AVID Unity Media Engine (3U Rackmount) | OS - UnRAID OS Pro

VM Host

Spoiler

CPU - Xeon E3-1246v3 | RAM - 32GB (4x8GB) Samsung ECC | PSU - Enermax Revolution SFX 550W | Storage - 2x 512GB Samsung 860 Pro (System / "Fast" VM's), 4x 500GB HGST (RAID 10) | Case - Avid Unity MediArray XT (3U Rackmount) | OS - Windows Server 2019 Datacenter

Notebooks

Spoiler

Fujitsu Lifebook E756 | CPU - i5 6200U | RAM - 8GB DDR4 OEM | GPU - Intel HD 520  | Storage - 250GB Crucial MX500 | OS - Windows 10 Pro

Apple MacBook Pro Mid 2015 | CPU - i7 4770HQ | RAM - 16GB | GPU - Intel Iris Pro | Storage - 512GB Toshiba XG4 NVMe | OS - macOS 10.15.1

 

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