0 an official mark put on a letter or parcel, typically showing the place that it was sent from and the time or date that it was sent --
1 to put a postmark on a letter or parcel: --
Voter registration forms had to be postmarked by midnight.
Almost all of the letters were postmarked in Florida.
2 an official mark on letters or packages, showing the place and day, month, and year of mailing --
3 an official mark put on a letter or package, showing the place that it was sent from and the time or date that it was sent: --
4 to put an official mark on a letter or package, showing the place that it was sent from and the time or date that it was sent: --
be postmarked Applications must be postmarked by Oct. 1.
We get an envelope pinned to another envelope, with a postmark showing that it has taken a week, say.
In some cases in my area, the form was sent by return from the electoral office, but was postmarked five days later.
There is evidence that the postmark has been welcomed.
One has to weigh up the good done by the postmark against the possible harm which might be caused.
The institution of an undirected postmark of this kind would, we believe, not be very productive.
This postmark is not one of mine but one from a private franking machine.
Will it be the date of the notice or the date of the postmark?
I will endeavour to secure that the details of the postmark are more legible.
