7
records
IPv4 Addresses
TTL
smtp.lambda-tek.com. 1200 IN A 212.146.193.194
Name Servers
TTL
NS
—
20m
NS
—
20m
smtp.lambda-tek.com. 1200 IN NS ns1.sendinblue.com. smtp.lambda-tek.com. 1200 IN NS ns2.sendinblue.com.
Mail Servers
TTL
MX
—
10
20m
smtp.lambda-tek.com. 1200 IN MX 10 smtp.lambda-tek.com.
SOA Details
TTL
20m
SOA
Responsible
hostmaster.brevo.com
SOA
Serial
2024052001
SOA
Times
Refresh
3h
Retry
1h
Expire
7d
Minimum TTL
1h
smtp.lambda-tek.com. 1200 IN SOA ns1.sendinblue.com. hostmaster.brevo.com. 2024052001 10800 3600 604800 3600
DMARC
TTL
DMARC
Policy
Organizational policy (p): how receivers treat mail that fails aligned DMARC checks — none (monitor only), quarantine (often junk), or reject (block).
none
quarantine
reject
20m
DMARC
Percentage
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100
DMARC
RUA
mailto:[email protected]
Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
DMARC
RUF
Forensic (per-failure) reports. Often omitted for privacy or volume.
No forensic report URIs (RUF).
smtp.lambda-tek.com. 1200 IN DMARC v=DMARC1; p=none; rua=mailto:[email protected]
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | include |
|
||
| + Pass | mx |
—
|
|
|
| ~ Softfail | all |
—
|
|
20m
smtp.lambda-tek.com. 1200 IN TXT "v=spf1 include:spf.brevo.com mx ~all"