But, though the service arrangements remained unchanged, they by no means escaped criticism. In 1810, Sir James Craig, the governor general, complained of the slowness of the communication with the United States and with the Maritime provinces.[163] Letters from New York seldom reached Quebec in less than fifteen or sixteen days, and it usually took a month for the courier to travel from Halifax to Quebec.

For the course of the post from New York, the governor was not disposed to blame Heriot entirely, as he knew the connections from New York to Swanton to be faulty, but he thought that, by a little exertion, Heriot could do much to remedy the defects. As for the movement of the couriers between Quebec and Halifax, the governor had been informed by certain London merchants that the journey could be made in six days. He would not insist on a speed equal to that, but sixteen or seventeen days ought to be easily within the capacity of the couriers.

Dealing with the Quebec-Halifax complaint first, Heriot was aware that the journey from Halifax to Quebec had been made in six days, but as the distance was six hundred and thirty-three miles, three hundred and sixty-eight of which could not be travelled by horse and carriage, he regarded the trip as an extraordinary performance. The circumstances, however, were unusually favourable. The weather was at its best, and no expense was spared to make the journey as rapidly as possible.

But it was useless, Heriot insisted, to compare speed of that kind with that which was within the power of a courier who had to carry a load sometimes weighing two hundred pounds on his back, for a distance of forty miles, after having rowed and poled up rivers and across lakes for two hundred miles. If the contractor was able to disregard considerations of expense, and employ as many couriers as could be done with advantage, much time might doubtless be saved.

Heriot was sure there were no grounds for believing that there would be any material increase in the revenue as the result of such expenditure. The commerce between the Canadas and the Maritime provinces was so trifling that it was all carried on by three or four small coasting vessels. Indeed, were it not for the correspondence between the military establishments, it would be better to drop regular trips between Quebec and Halifax, as the British mails could be carried much more cheaply and with greater celerity by expresses.

The connection with New York offered matter for criticism, but Heriot could not be reproached for remissness in this regard. He had proposed to the authorities at Washington that his couriers should carry the mails all the way between Montreal and New York, offering to pay the United States just as if their couriers had done the service within their territory, but the United States department would not entertain the proposition. He had also endeavoured, without success, to have the British mails landed at Boston during the winter months, instead of at New York. If this could have been accomplished, there would have been a considerable saving in the time required for the delivery of the British mails at Montreal and Quebec.

The war of 1812 had noticeable effects on the postal service. The mails passing between Quebec and Halifax had to be safeguarded against attack on the part of hostile parties from across the border and against privateers, who infested the lower waters of the St. John river and the bay of Fundy.

From the time the courier on his way eastward left the shores of the St. Lawrence, he was in danger of surprise. The portage between the St. Lawrence and lake Temiscouata was wild and uninhabited, and it would have been an easy matter for the enemy to waylay the courier if he travelled unprotected. When he reached the St. John river his course lay along the United States border. Indeed a considerable part of his route lay in territory which was afterwards adjudged by the Ashburton treaty to belong to the United States.

Heriot facilitated the couriers' journey over the portage by placing twenty-two old soldiers with their families at intervals on the route. They were supplied with arms, ammunition and rations, as the country was so mountainous, sterile and inhospitable, that no man could derive a subsistence from the soil. The couriers on entering the portage were, also, accompanied by an escort of two soldiers, who travelled with them as far as the Madawaska settlement. From that point downwards, the local captains of militia had orders to render all needful assistance and protection to the couriers.

At Fredericton an entire change was made in the route. The route had till then followed the course of the St. John river to the city of St. John, from which place the couriers were taken across the bay of Fundy to Annapolis, in a small sloop. In order to avoid the chances of capture on the water stretches or in the bay, the couriers were sent across the country through the centre of the province to Cumberland, as Amherst was then called, and thence on to Halifax.