Semrush uses Marketo for marketing email and Amazon SES for transactional/notifications. They rank #2,206 in the Tranco list of most-popular domains. Email goes out from 2 different subdomains. Their email authentication setup is good (score 80/100). We've recorded 2 ESP changes since first observing this brand.
Amazon SESNon-ESP tools detected in this brand's emails. Independent of who sends — a brand can use any combination.
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Authentication signals observed in this brand's emails. SPF, DKIM and DMARC are the standard sender-authentication stack — see the DMARC policy below for whether spoofing is actually blocked or just monitored. One-click unsubscribe meets Google & Yahoo's bulk-sender requirements.
SPF / DKIM / DMARC above reflect the last 10 emails we've observed. DMARC policy is read live from DNS.
DMARC reports sent to dmarcian. Policy
p=quarantine means receivers actively block or quarantine spoofed mail.
SPF alignment: 96% of observed emails use an aligned return-path (mailer-ses.semrush.com, return.semrush.com); the rest use third-party paths (gmail.com) where DMARC has to rely on DKIM alignment.
DKIM alignment: all 37 observed emails sign with a domain aligned with semrush.com (semrush.com, team.semrush.com). DKIM authenticates the visible From — supports DMARC directly.
TLS: 60% TLS 1.3, 40% TLS 1.2 (across 25 sends).
Delivery: fast — 100% of emails in the last 7 days arrive in under 10 seconds (across 16 sends).
Brands often use multiple ESPs (e.g. one for marketing, another for transactional/notifications).
None — only the primary ESP(s) shown aboveESPs we've seen sending email for this brand. Green = confirmed by SPF, sender IP rDNS, or known infra pairing (label shows the source). Grey = observed but not yet confirmed by SPF or PTR.
ESPs this brand has authorized in their SPF record. We confirm them with a green ✓ only after seeing recurring use (3+ emails across 2+ days). Until then they stay here — either we haven't observed any email yet, or we've seen a handful but not enough to call them a regular sender for the brand.
Probed: semrush.com, mailer-ses.semrush.com, return.semrush.com, gmail.com, team.semrush.com
Folder distribution across all emails from this brand observed in Gmail inboxes. High inbox % = good deliverability; spam appearances are the headline signal.
| Folder | Count | Share |
|---|---|---|
| inbox | 50 | 96.2% |
| promotions | 2 | 3.8% |
Which ESP's emails are landing where. Sorted by spam % so problem senders surface first. Brands using one ESP for marketing and another for transactional often see very different placement profiles per ESP. Per-ESP folder data only started being captured recently — counts here may be smaller than the total above until backfill catches up.
| ESP | Emails | Placement | Inbox % | Tabs % | Spam % |
|---|---|---|---|---|---|
| Amazon SES | 26 | 96.2% | 3.8% | 0.0% | |
| Marketo | 20 | 95.0% | 5.0% | 0.0% |
Monthly observations per ESP. Brands often run multiple ESPs concurrently — marketing on one, transactional on another — so this chart shows usage rather than switches.
IP addresses semrush.com has been observed sending from, and where their mail landed in Gmail.
| Domain | ESPs detected | Delivery (7d) |
|---|---|---|
semrush.com | Amazon SES 32 | |
team.semrush.com | Marketo 22 |