I am trying to get the mailcow calendar on my iphone. What I tried on the phone was to add a calendar. Add subcription calendar. in the subcription URL I put in: https://mail.dccathome.com/SOGo/dav/danc@dccathome.com/Calendar/personal/ However the iphone keeps changing the https to http and then says it is insecure.

@"esackbauer"#p20393 How do you test to see the records?

@"esackbauer"#p20393 OK I added the DNS records . How do I know I did it correctly?

Getting mailcow calendar on an iphone

esackbauer

Check this with Thunderbird, does it happen there as well? Do you use a reverse proxy?

maybl8

Working with Thunderbird just fine.
That is where I copyied the line from to put in iphone.
No reverse proxy

esackbauer

Check your Advanced DNS configuration:
https://docs.mailcow.email/getstarted/prerequisite-dns/#the-advanced-dns-configuration
I don’t see any of the _caldav records configured properly for your server.

maybl8

esackbauer
I didn’t need to do it for Thunderbird but I do need something more for the iphone?

maybl8

esackbauer How do you test to see the records?

maybl8

esackbauer OK I added the DNS records . How do I know I did it correctly?

esackbauer

use the nslookup or dig command

maybl8

esackbauer This is all I get. Is this the correct command?

[demo@mail ~]$ nslookup mail.dccathome.com -type=mx
Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
Name:	mail.dccathome.com
Address: 75.115.164.173

Here are my DNS records:

;;
;; Domain:     dccathome.com.
;; Exported:   2024-12-01 13:37:16
;;
;; This file is intended for use for informational and archival
;; purposes ONLY and MUST be edited before use on a production
;; DNS server.  In particular, you must:
;;   -- update the SOA record with the correct authoritative name server
;;   -- update the SOA record with the contact e-mail address information
;;   -- update the NS record(s) with the authoritative name servers for this domain.
;;
;; For further information, please consult the BIND documentation
;; located on the following website:
;;
;; http://www.isc.org/
;;
;; And RFC 1035:
;;
;; http://www.ietf.org/rfc/rfc1035.txt
;;
;; Please note that we do NOT offer technical support for any use
;; of this zone data, the BIND name server, or any other third-party
;; DNS software.
;;
;; Use at your own risk.
;; SOA Record
dccathome.com	3600	IN	SOA	fatima.ns.cloudflare.com. dns.cloudflare.com. 2048472683 10000 2400 604800 3600

;; NS Records
dccathome.com.	86400	IN	NS	fatima.ns.cloudflare.com.
dccathome.com.	86400	IN	NS	venkat.ns.cloudflare.com.

;; A Records
dccathome.com.	1	IN	A	75.115.164.173
mail.dccathome.com.	1	IN	A	75.115.164.173
www.dccathome.com.	1	IN	A	75.115.164.173

;; CNAME Records
autoconfig.dccathome.com.	1	IN	CNAME	mail.dccathome.com.
autodiscover.dccathome.com.	1	IN	CNAME	mail.dccathome.com.
em1331.dccathome.com.	1	IN	CNAME	u27410943.wl194.sendgrid.net.
s1._domainkey.dccathome.com.	1	IN	CNAME	s1.domainkey.u27410943.wl194.sendgrid.net.
s2._domainkey.dccathome.com.	1	IN	CNAME	s2.domainkey.u27410943.wl194.sendgrid.net.

;; MX Records
dccathome.com.	1	IN	MX	0 mail.dccathome.com.

;; PTR Records
mail.dccathome.com.	1	IN	PTR	mail.dccathome.com.

;; SRV Records
_autodiscover._tcp.dccathome.com.	1	IN	SRV	0 1 443 mail.dccathome.com.
_caldavs._tcp.dccathome.com.	1	IN	SRV	0 1 443 mail.dccathome.com.
_carddavs._tcp.dccathome.com.	1	IN	SRV	0 1 443 mail.dccathome.com.

;; TXT Records
_caldavs._tcp.dccathome.com.	1	IN	TXT	"path=/SOGo/dav/"
_carddavs._tcp.dccathome.com.	1	IN	TXT	"path=/SOGo/dav/"
_dmarc.dccathome.com.	1	IN	TXT	"v=DMARC1;  p=none; rua=mailto:21c44c518306426c87a467e53bee70ae@dmarc-reports.cloudflare.net"
mail.dccathome.com.	1	IN	TXT	"v=spf1 include:sendgrid.net -all."

esackbauer

Records look fine so far. However your mailcow GUI is not loading very very slow.
Are you using Cloudflare? Probably this is the reason. I am using calendar with iPad and I have no problems whatsoever.
I used the config link after I logged in as the mailbox user in GUI, at the bottom you will find the config links for Apple devices. Have you tried them?

maybl8

esackbauer Yes I am using Cloudflare. Should I use a different provider for my DNS? Who do you use?

I downloaded the profile for the caldav and emailed it to myself but when I click the attachment on the iphone it just opens the file . It doesn’t offer to install it. What am I doing wrong?
Thanks

esackbauer

maybl8 What am I doing wrong?

Open the mailcow GUI on your iPhone and click on the profile from there. Why so complicated with mailing yourself the profile? 😉

maybl8 Should I use a different provider for my DNS?

I guess thats fine, however there are more problems with cloudflare proxy and DDos prevention.

I don’t know why so many people use cloudflare DNS, when your domain provider has also their own DNS servers.

maybl8

esackbauer Ok I switched my local lan to use my providers DNS.
On the iPhone I clicked on the profile in the GUI and I hit Download but it doesn’t show up in settings when I goto settings to look for it.