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Live spam statistics from real mail servers

Totals from every SpamFoo installation over the last 30 days. The counters update as new mail is checked.

Messages checked78,197,729in the last 30 days
Spam stopped15,065,640kept out of the inbox
Spam share19.3%of all mail was spam

01Senders

The senders SpamFoo keeps track of

Every SpamFoo installation adds to a shared picture of which sending domains and IP addresses can be trusted, and which domains are pretending to be someone else.

Look-alike domains caught33,775messages from a domain made to look like a well-known one
Sending domains tracked1,890,281domains with a reputation history
Sending IP addresses tracked1,865,546IP addresses with a reputation history

02Time of day

Real mail follows the workday. Spam doesn't slow down as much.

When real mail slows down, spam slows down much less. So in the quiet hours, a bigger share of what arrives is spam. Times on this chart are shown in your time zone.

  • The most spam arrives around 13:00.
  • The highest share is around 01:00, when 31.5% of mail is spam.
  • The lowest share is around 07:00, at 13.1%.
Spam share by hour of dayLast 30 days

03Thirty days

Weekends bring less mail and a bigger share of spam

On weekdays, SpamFoo installations checked about 3.2 million messages a day and 18.8% was spam. On weekends, volume fell by more than half and the spam share rose to 20.6%.

Messages per daySpam shareWeekend
October 4 to November 2, 2026

04How verdicts are reached

Where 79.6 million verdicts came from

Most messages reach the models. Sender reputation settles about 1 in 8 on its own, and users' own corrections decide or adjust another 1.5%.

Messages, then the check that decided, then the verdictShare of all messages

05Sender authentication

90.1% of mail passed DMARC, SPF and DKIM checks

For each message with sender data, SpamFoo records whether it passed SPF, DKIM and DMARC. A failed check is one signal among many, and a pass alone doesn't get a message delivered.

  • Passed authentication70,461,022 messages90.1%
  • Not evaluated2,251,029 messages2.9%
  • Sender's domain has no DMARC policy2,983,420 messages3.8%
  • Failed DMARC2,502,258 messages3.2%

Want your own domain on the passing side? Publish a DMARC policy, then move it to quarantine once your reports look clean.

See these numbers for your own mail

Your SpamFoo dashboard shows your own mail trend, your spam share and the reason behind every verdict.

Start a free trialSee it on sample mail