사용자 도메인 별칭에 대해 Google의 이전 G-Suite 계정에 위의 설정을 설정했지만 여전히 두 가지 경고 메시지가 나타납니다.
There were some non-critical problems detected with the configuration of this domain.
Depending on how you configured your mail-flow, this could be a source of mail delivery issues.
DKIM is not set up. warning [this one always appears in yellow]
TXT lookup should fit in one UDP response packet.
https://toolbox.googleapps.com/apps/checkmx/check?domain=webcoder.co.uk
성공적으로 유효성을 검사하고 DNS에 필요한 항목이 거의 없는 다른 도구에 따라 SPF 및 DKIM을 올바르게 설정했습니다.
# dig webcoder.co.uk any
; <<>> DiG 9.16.1-Ubuntu <<>> webcoder.co.uk any
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13051
;; flags: qr rd ra; QUERY: 1, ANSWER: 11, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;webcoder.co.uk. IN ANY
;; ANSWER SECTION:
webcoder.co.uk. 86400 IN A 176.58.127.176
webcoder.co.uk. 86400 IN NS ns1.tsodns.com.
webcoder.co.uk. 86400 IN NS ns2.tsodns.com.
webcoder.co.uk. 86400 IN SOA ns1.tsodns.com. support.tsohost.com. 1628681639 10800 3600 604800 3600
webcoder.co.uk. 86400 IN MX 1 ASPMX.L.GOOGLE.com.
webcoder.co.uk. 86400 IN MX 5 ALT1.ASPMX.L.GOOGLE.com.
webcoder.co.uk. 86400 IN MX 5 ALT2.ASPMX.L.GOOGLE.com.
webcoder.co.uk. 86400 IN MX 10 ALT3.ASPMX.L.GOOGLE.com.
webcoder.co.uk. 86400 IN MX 10 ALT4.ASPMX.L.GOOGLE.com.
webcoder.co.uk. 86400 IN TXT "google-site-verification=oYfc0eoSUnoeUBYoTYKS9qIUlUlw6cHk6IWdC4UfTCc"
webcoder.co.uk. 86400 IN TXT "v=spf1 include:_spf.google.com ~all"
;; Query time: 19 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Wed Aug 11 13:00:02 BST 2021
;; MSG SIZE rcvd: 401
# dig webcoder.eu any
; <<>> DiG 9.16.1-Ubuntu <<>> webcoder.eu any
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 63301
;; flags: qr rd ra; QUERY: 1, ANSWER: 12, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;webcoder.eu. IN ANY
;; ANSWER SECTION:
webcoder.eu. 86400 IN A 176.58.127.176
webcoder.eu. 3600 IN NS ns51.domaincontrol.com.
webcoder.eu. 3600 IN NS ns52.domaincontrol.com.
webcoder.eu. 3600 IN SOA ns51.domaincontrol.com. dns.jomax.net. 2021081123 28800 7200 604800 3600
webcoder.eu. 604800 IN MX 20 alt1.aspmx.l.google.com.
webcoder.eu. 604800 IN MX 30 alt2.aspmx.l.google.com.
webcoder.eu. 604800 IN MX 10 aspmx.l.google.com.
webcoder.eu. 604800 IN MX 40 aspmx2.googlemail.com.
webcoder.eu. 604800 IN MX 50 aspmx3.googlemail.com.
webcoder.eu. 86400 IN TXT "v=spf1 include:_spf.google.com ~all"
webcoder.eu. 86400 IN TXT "MS=ms50869792"
webcoder.eu. 86400 IN TXT "google-site-verification=mq-5iDOSGsTY1whcBFqWbq6DXAy9WfD9YpXlDGU3Qyg"
;; Query time: 79 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Wed Aug 11 13:00:50 BST 2021
;; MSG SIZE rcvd: 445
반면에 기본 도메인 webcoder.eu를 확인하면 성공적으로 검증되었거나(모두 녹색) 간헐적으로 UDP 오류가 발생합니다.
error (in red):
MX lookup must fit in one UDP response packet.
Overly large MX response will cause problems for many senders. To avoid this, either decrease the number of MX records or shorten their names
warning appeared only a couple of times (yellow):
DKIM is not set up. warning
TXT lookup should fit in one UDP response packet.