The phrase "advertisements sent" is correct and usable in written English.
It can be used when referring to advertisements that have been dispatched or delivered to a recipient or audience.
Example: "The marketing team confirmed that all advertisements sent last week have been well received."
Alternatives: "ads delivered" or "promotions dispatched".
The people there represented four independent political action committees that, in the weeks since, have collectively spent more than $400,000 to broadcast advertisements, send political mail and deploy an army of field workers on Mr. Lee's behalf, effectively turbocharging his campaign.
You probably weren't dying to know that on April 7 , 1925 The Times published the first advertisement sent by telephotography.
In other words, a precisely timed advertisement, sent to a recent divorcee or new homebuyer, can change someone's shopping patterns for years.
Miss Stein was the first subscriber to Sylvia's lending library, for which she wrote a jocular little advertisement, sent to the rest of us Americans in the quarter, to incite us also to subscribe, which most of us did.
Junior doctors in psychiatry were recruited by an email advertisement sent to trainees at the South London and Maudsley NHS Foundation Trust.
For both the development and evaluation phases, stroke survivor participants were identified from stroke nursing team caseloads and were recruited via an initial advertisement sent out by stroke nursing teams.
Participants were recruited into quotas which ensured a gender and age balance reflective of the expected Natsal survey population; no further selection criteria were employed for Phase A. Phase B comprised interviews with ten participants recruited via an email advertisement sent out to NatCen staff.
Potential participants aged 18 years and over with a physician's diagnosis of asthma treated with daily inhaled corticosteroids of up to 1000 mcg beclometasone (or equivalent) were identified by local advertisement, sent an information sheet and invited to attend a screening visit.
An email flier is in other words a beautifully designed advertisement sent out over the email chain.
